142911657 has 24 divisors (see below), whose sum is σ = 236231424. Its totient is φ = 81555264.

The previous prime is 142911647. The next prime is 142911677. The reversal of 142911657 is 756119241.

It is not a de Polignac number, because 142911657 - 2⁷ = 142911529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142911617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89488 + ... + 91070.

It is an arithmetic number, because the mean of its divisors is an integer number (9842976).

Almost surely, 2^142911657 is an apocalyptic number.

It is an amenable number.

142911657 is a deficient number, since it is larger than the sum of its proper divisors (93319767).

142911657 is a wasteful number, since it uses less digits than its factorization.

142911657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029 (or 3026 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 142911657 is about 11954.5663660377. The cubic root of 142911657 is about 522.8244447565.

The spelling of 142911657 in words is "one hundred forty-two million, nine hundred eleven thousand, six hundred fifty-seven".