1151520051 has 32 divisors (see below), whose sum is σ = 1712010240. Its totient is φ = 682567200.

The previous prime is 1151520043. The next prime is 1151520053. The reversal of 1151520051 is 1500251511.

It is not a de Polignac number, because 1151520051 - 2³ = 1151520043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151520053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409416 + ... + 412218.

It is an arithmetic number, because the mean of its divisors is an integer number (53500320).

Almost surely, 2^1151520051 is an apocalyptic number.

1151520051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1151520051 is a deficient number, since it is larger than the sum of its proper divisors (560490189).

1151520051 is a wasteful number, since it uses less digits than its factorization.

1151520051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087.

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

The square root of 1151520051 is about 33934.0544438769. The cubic root of 1151520051 is about 1048.1509561869.

Adding to 1151520051 its reverse (1500251511), we get a palindrome (2651771562).

The spelling of 1151520051 in words is "one billion, one hundred fifty-one million, five hundred twenty thousand, fifty-one".