1156900399 has 2 divisors, whose sum is σ = 1156900400. Its totient is φ = 1156900398.

The previous prime is 1156900373. The next prime is 1156900417. The reversal of 1156900399 is 9930096511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1156900399 - 2¹⁵ = 1156867631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156900309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578450199 + 578450200.

It is an arithmetic number, because the mean of its divisors is an integer number (578450200).

Almost surely, 2^1156900399 is an apocalyptic number.

1156900399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156900399 is an equidigital number, since it uses as much as digits as its factorization.

1156900399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 1156900399 is about 34013.2385844100. The cubic root of 1156900399 is about 1049.7808761186.

The spelling of 1156900399 in words is "one billion, one hundred fifty-six million, nine hundred thousand, three hundred ninety-nine".