1157436451 has 4 divisors (see below), whose sum is σ = 1159362904. Its totient is φ = 1155510000.

The previous prime is 1157436439. The next prime is 1157436473. The reversal of 1157436451 is 1546347511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1157436451 - 2¹⁵ = 1157403683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157436451.

It is not an unprimeable number, because it can be changed into a prime (1157436421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962325 + ... + 963526.

It is an arithmetic number, because the mean of its divisors is an integer number (289840726).

Almost surely, 2^1157436451 is an apocalyptic number.

1157436451 is a deficient number, since it is larger than the sum of its proper divisors (1926453).

1157436451 is an equidigital number, since it uses as much as digits as its factorization.

1157436451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926452.

The product of its digits is 50400, while the sum is 37.

The square root of 1157436451 is about 34021.1177212037. The cubic root of 1157436451 is about 1049.9429904044.

The spelling of 1157436451 in words is "one billion, one hundred fifty-seven million, four hundred thirty-six thousand, four hundred fifty-one".