1377131272 has 32 divisors (see below), whose sum is σ = 2864613600. Its totient is φ = 615356800.

The previous prime is 1377131251. The next prime is 1377131299. The reversal of 1377131272 is 2721317731.

It is a happy 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, 127429 + ... + 137812.

It is an arithmetic number, because the mean of its divisors is an integer number (89519175).

Almost surely, 2^1377131272 is an apocalyptic number.

It is an amenable number.

1377131272 is an abundant number, since it is smaller than the sum of its proper divisors (1487482328).

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

1377131272 is a wasteful number, since it uses less digits than its factorization.

1377131272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265317 (or 265313 counting only the distinct ones).

The product of its digits is 12348, while the sum is 34.

The square root of 1377131272 is about 37109.7193737705. The cubic root of 1377131272 is about 1112.5642828150.

The spelling of 1377131272 in words is "one billion, three hundred seventy-seven million, one hundred thirty-one thousand, two hundred seventy-two".