145647636 has 48 divisors (see below), whose sum is σ = 365964480. Its totient is φ = 44915200.

The previous prime is 145647631. The next prime is 145647659. The reversal of 145647636 is 636746541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145647631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5986 + ... + 18086.

It is an arithmetic number, because the mean of its divisors is an integer number (7624260).

Almost surely, 2^145647636 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 145647636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182982240).

145647636 is an abundant number, since it is smaller than the sum of its proper divisors (220316844).

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

145647636 is a wasteful number, since it uses less digits than its factorization.

145647636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12184 (or 12182 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 145647636 is about 12068.4562393042. The cubic root of 145647636 is about 526.1397894546.

The spelling of 145647636 in words is "one hundred forty-five million, six hundred forty-seven thousand, six hundred thirty-six".