127434957 has 24 divisors (see below), whose sum is σ = 193687200. Its totient is φ = 74288448.

The previous prime is 127434953. The next prime is 127434977. The reversal of 127434957 is 759434721.

It is not a de Polignac number, because 127434957 - 2² = 127434953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127434953) 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, 3019 + ... + 16247.

It is an arithmetic number, because the mean of its divisors is an integer number (8070300).

Almost surely, 2^127434957 is an apocalyptic number.

It is an amenable number.

127434957 is a deficient number, since it is larger than the sum of its proper divisors (66252243).

127434957 is a wasteful number, since it uses less digits than its factorization.

127434957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13277 (or 13264 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 127434957 is about 11288.7092707714. The cubic root of 127434957 is about 503.2257536066.

It can be divided in two parts, 1274349 and 57, that added together give a triangular number (1274406 = T₁₅₉₆).

The spelling of 127434957 in words is "one hundred twenty-seven million, four hundred thirty-four thousand, nine hundred fifty-seven".