140156436 has 48 divisors (see below), whose sum is σ = 382452224. Its totient is φ = 39112416.

The previous prime is 140156431. The next prime is 140156437. The reversal of 140156436 is 634651041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140156431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15790 + ... + 23013.

Almost surely, 2^140156436 is an apocalyptic number.

It is an amenable number.

140156436 is an abundant number, since it is smaller than the sum of its proper divisors (242295788).

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

140156436 is a wasteful number, since it uses less digits than its factorization.

140156436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38860 (or 38858 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140156436 is about 11838.7683481011. The cubic root of 140156436 is about 519.4427412906.

The spelling of 140156436 in words is "one hundred forty million, one hundred fifty-six thousand, four hundred thirty-six".