145368636 has 24 divisors (see below), whose sum is σ = 387649920. Its totient is φ = 41533872.

The previous prime is 145368617. The next prime is 145368637. The reversal of 145368636 is 636863541.

It is a super-2 number, since 2×145368636² = 42264080665000992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145368637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865206 + ... + 865373.

It is an arithmetic number, because the mean of its divisors is an integer number (16152080).

Almost surely, 2^145368636 is an apocalyptic number.

It is an amenable number.

145368636 is an abundant number, since it is smaller than the sum of its proper divisors (242281284).

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

145368636 is a wasteful number, since it uses less digits than its factorization.

145368636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730593 (or 1730591 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 145368636 is about 12056.8916392244. The cubic root of 145368636 is about 525.8036200609.

The spelling of 145368636 in words is "one hundred forty-five million, three hundred sixty-eight thousand, six hundred thirty-six".