1155054377 has 2 divisors, whose sum is σ = 1155054378. Its totient is φ = 1155054376.

The previous prime is 1155054359. The next prime is 1155054449. The reversal of 1155054377 is 7734505511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 684554896 + 470499481 = 26164^2 + 21691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155054377 - 2²⁸ = 886618921 is a prime.

It is a super-2 number, since 2×1155054377² = 2668301227653716258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1155054377.

It is not a weakly prime, because it can be changed into another prime (1155054317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577527188 + 577527189.

It is an arithmetic number, because the mean of its divisors is an integer number (577527189).

Almost surely, 2^1155054377 is an apocalyptic number.

It is an amenable number.

1155054377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155054377 is an equidigital number, since it uses as much as digits as its factorization.

1155054377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1155054377 is about 33986.0909343808. The cubic root of 1155054377 is about 1049.2222137183. Note that the first 4 decimals are identical.

Adding to 1155054377 its reverse (7734505511), we get a palindrome (8889559888).

The spelling of 1155054377 in words is "one billion, one hundred fifty-five million, fifty-four thousand, three hundred seventy-seven".