140974457 has 8 divisors (see below), whose sum is σ = 152008584. Its totient is φ = 129967488.

The previous prime is 140974451. The next prime is 140974459. The reversal of 140974457 is 754479041.

140974457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5740816 + 135233641 = 2396^2 + 11629^2 .

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 140974457 - 2⁸ = 140974201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140974451) 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, 4733 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (19001073).

Almost surely, 2^140974457 is an apocalyptic number.

It is an amenable number.

140974457 is a deficient number, since it is larger than the sum of its proper divisors (11034127).

140974457 is a wasteful number, since it uses less digits than its factorization.

140974457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13579.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 140974457 is about 11873.2664839967. The cubic root of 140974457 is about 520.4513549099.

The spelling of 140974457 in words is "one hundred forty million, nine hundred seventy-four thousand, four hundred fifty-seven".