127755690 has 32 divisors (see below), whose sum is σ = 307622016. Its totient is φ = 33956160.

The previous prime is 127755659. The next prime is 127755707. The reversal of 127755690 is 96557721.

It is a super-2 number, since 2×127755690² = 32643032654752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 16176.

It is an arithmetic number, because the mean of its divisors is an integer number (9613188).

Almost surely, 2^127755690 is an apocalyptic number.

127755690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127755690 is an abundant number, since it is smaller than the sum of its proper divisors (179866326).

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

127755690 is a wasteful number, since it uses less digits than its factorization.

127755690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 127755690 is about 11302.9062634351. The cubic root of 127755690 is about 503.6475789615.

The spelling of 127755690 in words is "one hundred twenty-seven million, seven hundred fifty-five thousand, six hundred ninety".