1154979937 has 4 divisors (see below), whose sum is σ = 1205196480. Its totient is φ = 1104763396.

The previous prime is 1154979919. The next prime is 1154979979. The reversal of 1154979937 is 7399794511.

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 a de Polignac number, because none of the positive numbers 2^k-1154979937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154979037) 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, 25108237 + ... + 25108282.

It is an arithmetic number, because the mean of its divisors is an integer number (301299120).

Almost surely, 2^1154979937 is an apocalyptic number.

It is an amenable number.

1154979937 is a deficient number, since it is larger than the sum of its proper divisors (50216543).

1154979937 is an equidigital number, since it uses as much as digits as its factorization.

1154979937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50216542.

The product of its digits is 2143260, while the sum is 55.

The square root of 1154979937 is about 33984.9957628363. The cubic root of 1154979937 is about 1049.1996734290.

The spelling of 1154979937 in words is "one billion, one hundred fifty-four million, nine hundred seventy-nine thousand, nine hundred thirty-seven".