1151956497 has 16 divisors (see below), whose sum is σ = 1591690752. Its totient is φ = 740290560.

The previous prime is 1151956493. The next prime is 1151956517. The reversal of 1151956497 is 7946591511.

It is not a de Polignac number, because 1151956497 - 2² = 1151956493 is a prime.

It is a super-2 number, since 2×1151956497² = 2654007541961022018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1151956493) 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 in 15 ways as a sum of consecutive naturals, for example, 198 + ... + 47999.

It is an arithmetic number, because the mean of its divisors is an integer number (99480672).

Almost surely, 2^1151956497 is an apocalyptic number.

It is an amenable number.

1151956497 is a deficient number, since it is larger than the sum of its proper divisors (439734255).

1151956497 is a wasteful number, since it uses less digits than its factorization.

1151956497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48488.

The product of its digits is 340200, while the sum is 48.

The square root of 1151956497 is about 33940.4846311893. The cubic root of 1151956497 is about 1048.2833619025.

The spelling of 1151956497 in words is "one billion, one hundred fifty-one million, nine hundred fifty-six thousand, four hundred ninety-seven".