127481957 has 4 divisors (see below), whose sum is σ = 127757760. Its totient is φ = 127206156.

The previous prime is 127481953. The next prime is 127481969. The reversal of 127481957 is 759184721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 759184721 = 3373 ⋅225077.

It is a cyclic number.

It is not a de Polignac number, because 127481957 - 2² = 127481953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127481953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137207 + ... + 138132.

It is an arithmetic number, because the mean of its divisors is an integer number (31939440).

Almost surely, 2^127481957 is an apocalyptic number.

It is an amenable number.

127481957 is a deficient number, since it is larger than the sum of its proper divisors (275803).

127481957 is an equidigital number, since it uses as much as digits as its factorization.

127481957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275802.

The product of its digits is 141120, while the sum is 44.

The square root of 127481957 is about 11290.7908048994. The cubic root of 127481957 is about 503.2876118384.

The spelling of 127481957 in words is "one hundred twenty-seven million, four hundred eighty-one thousand, nine hundred fifty-seven".