1137557207 has 8 divisors (see below), whose sum is σ = 1188170880. Its totient is φ = 1087039800.

The previous prime is 1137557173. The next prime is 1137557257. The reversal of 1137557207 is 7027557311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1137557207 - 2⁶ = 1137557143 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 (1137557257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 47702.

It is an arithmetic number, because the mean of its divisors is an integer number (148521360).

Almost surely, 2^1137557207 is an apocalyptic number.

1137557207 is a deficient number, since it is larger than the sum of its proper divisors (50613673).

1137557207 is a wasteful number, since it uses less digits than its factorization.

1137557207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48133.

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 1137557207 is about 33727.6919904105. The cubic root of 1137557207 is about 1043.8972385924.

The spelling of 1137557207 in words is "one billion, one hundred thirty-seven million, five hundred fifty-seven thousand, two hundred seven".