1375137630 has 48 divisors (see below), whose sum is σ = 3578094000. Its totient is φ = 366422784.

The previous prime is 1375137613. The next prime is 1375137641. The reversal of 1375137630 is 367315731.

It is a happy number.

1375137630 is a `hidden beast` number, since 1 + 3 + 7 + 5 + 13 + 7 + 630 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129814 + ... + 140006.

It is an arithmetic number, because the mean of its divisors is an integer number (74543625).

Almost surely, 2^1375137630 is an apocalyptic number.

1375137630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375137630 is an abundant number, since it is smaller than the sum of its proper divisors (2202956370).

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

1375137630 is a wasteful number, since it uses less digits than its factorization.

1375137630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11705 (or 11702 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 1375137630 is about 37082.8481915831. The cubic root of 1375137630 is about 1112.0271454262.

The spelling of 1375137630 in words is "one billion, three hundred seventy-five million, one hundred thirty-seven thousand, six hundred thirty".