1157461042 has 4 divisors (see below), whose sum is σ = 1736191566. Its totient is φ = 578730520.

The previous prime is 1157461033. The next prime is 1157461049. The reversal of 1157461042 is 2401647511.

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

It can be written as a sum of positive squares in only one way, i.e., 1112289201 + 45171841 = 33351^2 + 6721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1157460995 and 1157461013.

It is not an unprimeable number, because it can be changed into a prime (1157461049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289365259 + ... + 289365262.

Almost surely, 2^1157461042 is an apocalyptic number.

1157461042 is a deficient number, since it is larger than the sum of its proper divisors (578730524).

1157461042 is an equidigital number, since it uses as much as digits as its factorization.

1157461042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578730523.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1157461042 is about 34021.4791271632. The cubic root of 1157461042 is about 1049.9504260797.

The spelling of 1157461042 in words is "one billion, one hundred fifty-seven million, four hundred sixty-one thousand, forty-two".