1155125384 has 32 divisors (see below), whose sum is σ = 2620874880. Its totient is φ = 465932544.

The previous prime is 1155125371. The next prime is 1155125399. The reversal of 1155125384 is 4835215511.

It is a super-2 number, since 2×1155125384² = 2668629305522294912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605732 + ... + 607635.

It is an arithmetic number, because the mean of its divisors is an integer number (81902340).

Almost surely, 2^1155125384 is an apocalyptic number.

1155125384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1155125384 is an abundant number, since it is smaller than the sum of its proper divisors (1465749496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155125384 is a wasteful number, since it uses less digits than its factorization.

1155125384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213397 (or 1213393 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 1155125384 is about 33987.1355662698. The cubic root of 1155125384 is about 1049.2437135993.

The spelling of 1155125384 in words is "one billion, one hundred fifty-five million, one hundred twenty-five thousand, three hundred eighty-four".