140556965 has 8 divisors (see below), whose sum is σ = 177545760. Its totient is φ = 106527312.

The previous prime is 140556961. The next prime is 140556973. The reversal of 140556965 is 569655041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140556965 - 2² = 140556961 is a prime.

It is a super-2 number, since 2×140556965² = 39512520820022450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140556961) 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, 739679 + ... + 739868.

It is an arithmetic number, because the mean of its divisors is an integer number (22193220).

Almost surely, 2^140556965 is an apocalyptic number.

It is an amenable number.

140556965 is a deficient number, since it is larger than the sum of its proper divisors (36988795).

140556965 is a wasteful number, since it uses less digits than its factorization.

140556965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479571.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 140556965 is about 11855.6722711114. The cubic root of 140556965 is about 519.9370794184.

The spelling of 140556965 in words is "one hundred forty million, five hundred fifty-six thousand, nine hundred sixty-five".