1151522439 has 12 divisors (see below), whose sum is σ = 1605022776. Its totient is φ = 734303152.

The previous prime is 1151522431. The next prime is 1151522443. The reversal of 1151522439 is 9342251511.

It is a happy number.

It is not a de Polignac number, because 1151522439 - 2³ = 1151522431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151522431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361212 + ... + 364385.

It is an arithmetic number, because the mean of its divisors is an integer number (133751898).

Almost surely, 2^1151522439 is an apocalyptic number.

1151522439 is a deficient number, since it is larger than the sum of its proper divisors (453500337).

1151522439 is an equidigital number, since it uses as much as digits as its factorization.

1151522439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725646 (or 725623 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 1151522439 is about 33934.0896297514. The cubic root of 1151522439 is about 1048.1516807315.

The spelling of 1151522439 in words is "one billion, one hundred fifty-one million, five hundred twenty-two thousand, four hundred thirty-nine".