1149025923 has 12 divisors (see below), whose sum is σ = 1674393240. Its totient is φ = 759237696.

The previous prime is 1149025921. The next prime is 1149025939. The reversal of 1149025923 is 3295209411.

It is not a de Polignac number, because 1149025923 - 2¹ = 1149025921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1149025921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 563893 + ... + 565926.

It is an arithmetic number, because the mean of its divisors is an integer number (139532770).

Almost surely, 2^1149025923 is an apocalyptic number.

1149025923 is a deficient number, since it is larger than the sum of its proper divisors (525367317).

1149025923 is a wasteful number, since it uses less digits than its factorization.

1149025923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129938 (or 1129935 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1149025923 is about 33897.2848912712. The cubic root of 1149025923 is about 1047.3936637310.

The spelling of 1149025923 in words is "one billion, one hundred forty-nine million, twenty-five thousand, nine hundred twenty-three".