127715740 has 24 divisors (see below), whose sum is σ = 268561440. Its totient is φ = 51018048.

The previous prime is 127715737. The next prime is 127715759. The reversal of 127715740 is 47517721.

It is a super-2 number, since 2×127715740² = 32622620487495200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127715696 and 127715705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12729 + ... + 20431.

It is an arithmetic number, because the mean of its divisors is an integer number (11190060).

Almost surely, 2^127715740 is an apocalyptic number.

127715740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127715740 is an abundant number, since it is smaller than the sum of its proper divisors (140845700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127715740 is a wasteful number, since it uses less digits than its factorization.

127715740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541 (or 8539 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 127715740 is about 11301.1388806615. The cubic root of 127715740 is about 503.5950755768.

The spelling of 127715740 in words is "one hundred twenty-seven million, seven hundred fifteen thousand, seven hundred forty".