1151440515 has 80 divisors (see below), whose sum is σ = 2239332480. Its totient is φ = 563742720.

The previous prime is 1151440457. The next prime is 1151440523. The reversal of 1151440515 is 5150441511.

1151440515 is a `hidden beast` number, since 1 + 1 + 5 + 144 + 0 + 515 = 666.

It is not a de Polignac number, because 1151440515 - 2⁷ = 1151440387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 280246 + ... + 284324.

It is an arithmetic number, because the mean of its divisors is an integer number (27991656).

Almost surely, 2^1151440515 is an apocalyptic number.

1151440515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151440515 is a deficient number, since it is larger than the sum of its proper divisors (1087891965).

1151440515 is a wasteful number, since it uses less digits than its factorization.

1151440515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154 (or 4145 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1151440515 is about 33932.8825035540. The cubic root of 1151440515 is about 1048.1268235477.

The spelling of 1151440515 in words is "one billion, one hundred fifty-one million, four hundred forty thousand, five hundred fifteen".