1162400791 has 4 divisors (see below), whose sum is σ = 1223579800. Its totient is φ = 1101221784.

The previous prime is 1162400783. The next prime is 1162400801. The reversal of 1162400791 is 1970042611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1970042611 = 24379 ⋅80809.

It is a cyclic number.

It is not a de Polignac number, because 1162400791 - 2³ = 1162400783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162407791) 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 3 ways as a sum of consecutive naturals, for example, 30589476 + ... + 30589513.

It is an arithmetic number, because the mean of its divisors is an integer number (305894950).

Almost surely, 2^1162400791 is an apocalyptic number.

1162400791 is a deficient number, since it is larger than the sum of its proper divisors (61179009).

1162400791 is an equidigital number, since it uses as much as digits as its factorization.

1162400791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61179008.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1162400791 is about 34093.9993400598. Note that the first 3 decimals coincide. The cubic root of 1162400791 is about 1051.4419466334.

The spelling of 1162400791 in words is "one billion, one hundred sixty-two million, four hundred thousand, seven hundred ninety-one".