1152423099 has 8 divisors (see below), whose sum is σ = 1707293520. Its totient is φ = 768282048.

The previous prime is 1152423071. The next prime is 1152423137. The reversal of 1152423099 is 9903242511.

1152423099 is a `hidden beast` number, since 11 + 524 + 2 + 30 + 99 = 666.

It is not a de Polignac number, because 1152423099 - 2¹¹ = 1152421051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1152423499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21341142 + ... + 21341195.

It is an arithmetic number, because the mean of its divisors is an integer number (213411690).

Almost surely, 2^1152423099 is an apocalyptic number.

1152423099 is a deficient number, since it is larger than the sum of its proper divisors (554870421).

1152423099 is an equidigital number, since it uses as much as digits as its factorization.

1152423099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42682346 (or 42682340 counting only the distinct ones).

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

The square root of 1152423099 is about 33947.3577616874. The cubic root of 1152423099 is about 1048.4248791352.

It can be divided in two parts, 115242 and 3099, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 1152423099 in words is "one billion, one hundred fifty-two million, four hundred twenty-three thousand, ninety-nine".