127220764 has 12 divisors (see below), whose sum is σ = 242876088. Its totient is φ = 57827600.

The previous prime is 127220699. The next prime is 127220771. The reversal of 127220764 is 467022721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445647 + ... + 1445734.

It is an arithmetic number, because the mean of its divisors is an integer number (20239674).

Almost surely, 2^127220764 is an apocalyptic number.

It is an amenable number.

127220764 is a deficient number, since it is larger than the sum of its proper divisors (115655324).

127220764 is a wasteful number, since it uses less digits than its factorization.

127220764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891396 (or 2891394 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 127220764 is about 11279.2182353211. The cubic root of 127220764 is about 502.9436544542.

The spelling of 127220764 in words is "one hundred twenty-seven million, two hundred twenty thousand, seven hundred sixty-four".