1137725280 has 72 divisors (see below), whose sum is σ = 3882492432. Its totient is φ = 303393024.

The previous prime is 1137725279. The next prime is 1137725299. The reversal of 1137725280 is 825277311.

1137725280 is a `hidden beast` number, since 1 + 1 + 377 + 2 + 5 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393604 + ... + 396483.

It is an arithmetic number, because the mean of its divisors is an integer number (53923506).

Almost surely, 2^1137725280 is an apocalyptic number.

1137725280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1137725280 is an abundant number, since it is smaller than the sum of its proper divisors (2744767152).

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

1137725280 is a wasteful number, since it uses less digits than its factorization.

1137725280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790108 (or 790097 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 1137725280 is about 33730.1835156585. The cubic root of 1137725280 is about 1043.9486476701.

The spelling of 1137725280 in words is "one billion, one hundred thirty-seven million, seven hundred twenty-five thousand, two hundred eighty".