1157671051 has 4 divisors (see below), whose sum is σ = 1160150472. Its totient is φ = 1155191632.

The previous prime is 1157671043. The next prime is 1157671061. The reversal of 1157671051 is 1501767511.

It is a happy number.

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 1157671051 - 2³ = 1157671043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1157670998 and 1157671016.

It is not an unprimeable number, because it can be changed into a prime (1157671001) 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, 1239010 + ... + 1239943.

It is an arithmetic number, because the mean of its divisors is an integer number (290037618).

Almost surely, 2^1157671051 is an apocalyptic number.

1157671051 is a deficient number, since it is larger than the sum of its proper divisors (2479421).

1157671051 is an equidigital number, since it uses as much as digits as its factorization.

1157671051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479420.

The product of its (nonzero) digits is 7350, while the sum is 34.

The square root of 1157671051 is about 34024.5654050129. The cubic root of 1157671051 is about 1050.0139230202.

The spelling of 1157671051 in words is "one billion, one hundred fifty-seven million, six hundred seventy-one thousand, fifty-one".