1150555031 has 2 divisors, whose sum is σ = 1150555032. Its totient is φ = 1150555030.

The previous prime is 1150555009. The next prime is 1150555061. The reversal of 1150555031 is 1305550511.

It is a weak prime.

It is an emirp because it is prime and its reverse (1305550511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150555031 is a prime.

It is a super-2 number, since 2×1150555031² = 2647553758718821922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150555061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575277515 + 575277516.

It is an arithmetic number, because the mean of its divisors is an integer number (575277516).

Almost surely, 2^1150555031 is an apocalyptic number.

1150555031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150555031 is an equidigital number, since it uses as much as digits as its factorization.

1150555031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1150555031 is about 33919.8324140907. The cubic root of 1150555031 is about 1047.8580768396.

The spelling of 1150555031 in words is "one billion, one hundred fifty million, five hundred fifty-five thousand, thirty-one".