1137887785 has 8 divisors (see below), whose sum is σ = 1373094720. Its totient is φ = 905223984.

The previous prime is 1137887743. The next prime is 1137887791. The reversal of 1137887785 is 5877887311.

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

It is a cyclic number.

It is not a de Polignac number, because 1137887785 - 2¹⁷ = 1137756713 is a prime.

It is a super-2 number, since 2×1137887785² = 2589577222504412450, which contains 22 as substring.

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, 634797 + ... + 636586.

It is an arithmetic number, because the mean of its divisors is an integer number (171636840).

Almost surely, 2^1137887785 is an apocalyptic number.

It is an amenable number.

1137887785 is a deficient number, since it is larger than the sum of its proper divisors (235206935).

1137887785 is a wasteful number, since it uses less digits than its factorization.

1137887785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271567.

The product of its digits is 2634240, while the sum is 55.

The square root of 1137887785 is about 33732.5923255240. The cubic root of 1137887785 is about 1043.9983488301.

The spelling of 1137887785 in words is "one billion, one hundred thirty-seven million, eight hundred eighty-seven thousand, seven hundred eighty-five".