1137021755 has 4 divisors (see below), whose sum is σ = 1364426112. Its totient is φ = 909617400.

The previous prime is 1137021749. The next prime is 1137021779. The reversal of 1137021755 is 5571207311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1137021755 - 2¹⁴ = 1137005371 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113702171 + ... + 113702180.

It is an arithmetic number, because the mean of its divisors is an integer number (341106528).

Almost surely, 2^1137021755 is an apocalyptic number.

1137021755 is a deficient number, since it is larger than the sum of its proper divisors (227404357).

1137021755 is an equidigital number, since it uses as much as digits as its factorization.

1137021755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227404356.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 1137021755 is about 33719.7531871157. The cubic root of 1137021755 is about 1043.7334242410.

The spelling of 1137021755 in words is "one billion, one hundred thirty-seven million, twenty-one thousand, seven hundred fifty-five".