140556456 has 24 divisors (see below), whose sum is σ = 380673930. Its totient is φ = 46852128.

The previous prime is 140556443. The next prime is 140556457. The reversal of 140556456 is 654655041.

140556456 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 5 + 645 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140422500 + 133956 = 11850^2 + 366^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×140556456² = 39512234646559872, 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 140556456.

It is not an unprimeable number, because it can be changed into a prime (140556457) 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, 976015 + ... + 976158.

Almost surely, 2^140556456 is an apocalyptic number.

It is an amenable number.

140556456 is an abundant number, since it is smaller than the sum of its proper divisors (240117474).

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

140556456 is a wasteful number, since it uses less digits than its factorization.

140556456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952185 (or 1952178 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 140556456 is about 11855.6508045742. The cubic root of 140556456 is about 519.9364518003.

The spelling of 140556456 in words is "one hundred forty million, five hundred fifty-six thousand, four hundred fifty-six".