1157225451 has 8 divisors (see below), whose sum is σ = 1580600784. Its totient is φ = 752666880.

The previous prime is 1157225401. The next prime is 1157225453. The reversal of 1157225451 is 1545227511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1157225451 - 2⁶ = 1157225387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157225453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704046 + ... + 4704291.

It is an arithmetic number, because the mean of its divisors is an integer number (197575098).

Almost surely, 2^1157225451 is an apocalyptic number.

1157225451 is a deficient number, since it is larger than the sum of its proper divisors (423375333).

1157225451 is an equidigital number, since it uses as much as digits as its factorization.

1157225451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9408381.

The product of its digits is 14000, while the sum is 33.

The square root of 1157225451 is about 34018.0165647558. The cubic root of 1157225451 is about 1049.8791851923.

The spelling of 1157225451 in words is "one billion, one hundred fifty-seven million, two hundred twenty-five thousand, four hundred fifty-one".