140052636 has 18 divisors (see below), whose sum is σ = 354022032. Its totient is φ = 46684200.

The previous prime is 140052631. The next prime is 140052641. The reversal of 140052636 is 636250041.

It is an interprime number because it is at equal distance from previous prime (140052631) and next prime (140052641).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×140052636² = 39229481701096992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140052631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1945140 + ... + 1945211.

Almost surely, 2^140052636 is an apocalyptic number.

It is an amenable number.

140052636 is an abundant number, since it is smaller than the sum of its proper divisors (213969396).

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

140052636 is a wasteful number, since it uses less digits than its factorization.

140052636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890361 (or 3890356 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 140052636 is about 11834.3836341400. The cubic root of 140052636 is about 519.3144763456.

It can be divided in two parts, 14005 and 2636, that added together give a square (16641 = 129²).

The spelling of 140052636 in words is "one hundred forty million, fifty-two thousand, six hundred thirty-six".