1151520439 has 2 divisors, whose sum is σ = 1151520440. Its totient is φ = 1151520438.

The previous prime is 1151520437. The next prime is 1151520563. The reversal of 1151520439 is 9340251511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151520439 - 2¹ = 1151520437 is a prime.

Together with 1151520437, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1151520439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151520431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575760219 + 575760220.

It is an arithmetic number, because the mean of its divisors is an integer number (575760220).

Almost surely, 2^1151520439 is an apocalyptic number.

1151520439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151520439 is an equidigital number, since it uses as much as digits as its factorization.

1151520439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1151520439 is about 33934.0601608472. The cubic root of 1151520439 is about 1048.1510739103.

The spelling of 1151520439 in words is "one billion, one hundred fifty-one million, five hundred twenty thousand, four hundred thirty-nine".