140052785 has 4 divisors (see below), whose sum is σ = 168063348. Its totient is φ = 112042224.

The previous prime is 140052769. The next prime is 140052791. The reversal of 140052785 is 587250041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109327936 + 30724849 = 10456^2 + 5543^2 .

It is a cyclic number.

It is not a de Polignac number, because 140052785 - 2⁴ = 140052769 is a prime.

It is a super-2 number, since 2×140052785² = 39229565172512450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14005274 + ... + 14005283.

It is an arithmetic number, because the mean of its divisors is an integer number (42015837).

Almost surely, 2^140052785 is an apocalyptic number.

It is an amenable number.

140052785 is a deficient number, since it is larger than the sum of its proper divisors (28010563).

140052785 is an equidigital number, since it uses as much as digits as its factorization.

140052785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28010562.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 140052785 is about 11834.3899293542. The cubic root of 140052785 is about 519.3146605093.

The spelling of 140052785 in words is "one hundred forty million, fifty-two thousand, seven hundred eighty-five".