127661392 has 10 divisors (see below), whose sum is σ = 247343978. Its totient is φ = 63830688.

The previous prime is 127661383. The next prime is 127661419. The reversal of 127661392 is 293166721.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 40500496 = 9336^2 + 6364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3989403 + ... + 3989434.

Almost surely, 2^127661392 is an apocalyptic number.

It is an amenable number.

127661392 is a deficient number, since it is larger than the sum of its proper divisors (119682586).

127661392 is an equidigital number, since it uses as much as digits as its factorization.

127661392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978845 (or 7978839 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 127661392 is about 11298.7340883835. The cubic root of 127661392 is about 503.5236323641.

The spelling of 127661392 in words is "one hundred twenty-seven million, six hundred sixty-one thousand, three hundred ninety-two".