1154923957 has 32 divisors (see below), whose sum is σ = 1346615424. Its totient is φ = 980812800.

The previous prime is 1154923943. The next prime is 1154923961. The reversal of 1154923957 is 7593294511.

It is not a de Polignac number, because 1154923957 - 2⁷ = 1154923829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154923937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1117513 + ... + 1118545.

It is an arithmetic number, because the mean of its divisors is an integer number (42081732).

Almost surely, 2^1154923957 is an apocalyptic number.

It is an amenable number.

1154923957 is a deficient number, since it is larger than the sum of its proper divisors (191691467).

1154923957 is a wasteful number, since it uses less digits than its factorization.

1154923957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its digits is 340200, while the sum is 46.

The square root of 1154923957 is about 33984.1721541073. The cubic root of 1154923957 is about 1049.1827221543.

The spelling of 1154923957 in words is "one billion, one hundred fifty-four million, nine hundred twenty-three thousand, nine hundred fifty-seven".