1137849553 has 4 divisors (see below), whose sum is σ = 1138121968. Its totient is φ = 1137577140.

The previous prime is 1137849551. The next prime is 1137849569. The reversal of 1137849553 is 3559487311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1137849553 - 2¹ = 1137849551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1137849551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129843 + ... + 138328.

It is an arithmetic number, because the mean of its divisors is an integer number (284530492).

Almost surely, 2^1137849553 is an apocalyptic number.

It is an amenable number.

1137849553 is a deficient number, since it is larger than the sum of its proper divisors (272415).

1137849553 is an equidigital number, since it uses as much as digits as its factorization.

1137849553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272414.

The product of its digits is 453600, while the sum is 46.

The square root of 1137849553 is about 33732.0256284736. The cubic root of 1137849553 is about 1043.9866562325.

The spelling of 1137849553 in words is "one billion, one hundred thirty-seven million, eight hundred forty-nine thousand, five hundred fifty-three".