1150405155 has 12 divisors (see below), whose sum is σ = 1994035680. Its totient is φ = 613549392.

The previous prime is 1150405129. The next prime is 1150405169. The reversal of 1150405155 is 5515040511.

1150405155 is a `hidden beast` number, since 1 + 1 + 504 + 0 + 5 + 155 = 666.

It is not a de Polignac number, because 1150405155 - 2¹³ = 1150396963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12782235 + ... + 12782324.

It is an arithmetic number, because the mean of its divisors is an integer number (166169640).

Almost surely, 2^1150405155 is an apocalyptic number.

1150405155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1150405155 is a deficient number, since it is larger than the sum of its proper divisors (843630525).

1150405155 is a wasteful number, since it uses less digits than its factorization.

1150405155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25564570 (or 25564567 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1150405155 is about 33917.6230741483. The cubic root of 1150405155 is about 1047.8125754388.

Adding to 1150405155 its reverse (5515040511), we get a palindrome (6665445666).

It can be divided in two parts, 115040515 and 5, that multiplied together give a palindrome (575202575).

The spelling of 1150405155 in words is "one billion, one hundred fifty million, four hundred five thousand, one hundred fifty-five".