145326636 has 288 divisors, whose sum is σ = 493129728. Its totient is φ = 36391680.

The previous prime is 145326631. The next prime is 145326641. The reversal of 145326636 is 636623541.

145326636 is a `hidden beast` number, since 14 + 5 + 3 + 2 + 6 + 636 = 666.

It is an interprime number because it is at equal distance from previous prime (145326631) and next prime (145326641).

It is a super-2 number, since 2×145326636² = 42239662262152992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 145326636.

It is not an unprimeable number, because it can be changed into a prime (145326631) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2741986 + ... + 2742038.

It is an arithmetic number, because the mean of its divisors is an integer number (1712256).

Almost surely, 2^145326636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145326636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246564864).

145326636 is an abundant number, since it is smaller than the sum of its proper divisors (347803092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145326636 is a wasteful number, since it uses less digits than its factorization.

145326636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 145326636 is about 12055.1497709485. The cubic root of 145326636 is about 525.7529766763.

The spelling of 145326636 in words is "one hundred forty-five million, three hundred twenty-six thousand, six hundred thirty-six".