1377614725 has 12 divisors (see below), whose sum is σ = 1713709636. Its totient is φ = 1098564480.

The previous prime is 1377614717. The next prime is 1377614729. The reversal of 1377614725 is 5274167731.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 159744321 + 1217870404 = 12639^2 + 34898^2 .

It is not a de Polignac number, because 1377614725 - 2³ = 1377614717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377614729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80202 + ... + 95851.

Almost surely, 2^1377614725 is an apocalyptic number.

It is an amenable number.

1377614725 is a deficient number, since it is larger than the sum of its proper divisors (336094911).

1377614725 is a wasteful number, since it uses less digits than its factorization.

1377614725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176376 (or 176371 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The square root of 1377614725 is about 37116.2326347920. The cubic root of 1377614725 is about 1112.6944591271.

The spelling of 1377614725 in words is "one billion, three hundred seventy-seven million, six hundred fourteen thousand, seven hundred twenty-five".