1151015520 has 48 divisors (see below), whose sum is σ = 3625700400. Its totient is φ = 306937344.

The previous prime is 1151015479. The next prime is 1151015533. The reversal of 1151015520 is 255101511.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 1198495 + ... + 1199454.

It is an arithmetic number, because the mean of its divisors is an integer number (75535425).

Almost surely, 2^1151015520 is an apocalyptic number.

1151015520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151015520 is an abundant number, since it is smaller than the sum of its proper divisors (2474684880).

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

1151015520 is a wasteful number, since it uses less digits than its factorization.

1151015520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397967 (or 2397959 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 1151015520 is about 33926.6196370932. The cubic root of 1151015520 is about 1047.9978536560.

The spelling of 1151015520 in words is "one billion, one hundred fifty-one million, fifteen thousand, five hundred twenty".