657139141 has 12 divisors (see below), whose sum is σ = 688692928. Its totient is φ = 626976504.

The previous prime is 657139127. The next prime is 657139157. The reversal of 657139141 is 141931756.

It is a happy number.

657139141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 657139141 - 2¹⁷ = 657008069 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 657139141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657139121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243586 + ... + 246268.

Almost surely, 2^657139141 is an apocalyptic number.

It is an amenable number.

657139141 is a deficient number, since it is larger than the sum of its proper divisors (31553787).

657139141 is a wasteful number, since it uses less digits than its factorization.

657139141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192 (or 3169 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 657139141 is about 25634.7252959730. The cubic root of 657139141 is about 869.3989511293.

The spelling of 657139141 in words is "six hundred fifty-seven million, one hundred thirty-nine thousand, one hundred forty-one".