1153915995 has 16 divisors (see below), whose sum is σ = 1855936512. Its totient is φ = 612198240.

The previous prime is 1153915993. The next prime is 1153916017. The reversal of 1153915995 is 5995193511.

It is not a de Polignac number, because 1153915995 - 2¹ = 1153915993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153915991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198517 + ... + 204246.

It is an arithmetic number, because the mean of its divisors is an integer number (115996032).

Almost surely, 2^1153915995 is an apocalyptic number.

1153915995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1153915995 is a deficient number, since it is larger than the sum of its proper divisors (702020517).

1153915995 is a wasteful number, since it uses less digits than its factorization.

1153915995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402962.

The product of its digits is 273375, while the sum is 48.

The square root of 1153915995 is about 33969.3390427309. The cubic root of 1153915995 is about 1048.8774079347.

The spelling of 1153915995 in words is "one billion, one hundred fifty-three million, nine hundred fifteen thousand, nine hundred ninety-five".