1157042425 has 24 divisors (see below), whose sum is σ = 1788760512. Its totient is φ = 721272000.

The previous prime is 1157042371. The next prime is 1157042431. The reversal of 1157042425 is 5242407511.

It is not a de Polignac number, because 1157042425 - 2¹⁵ = 1157009657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298606 + ... + 302455.

It is an arithmetic number, because the mean of its divisors is an integer number (74531688).

Almost surely, 2^1157042425 is an apocalyptic number.

It is an amenable number.

1157042425 is a deficient number, since it is larger than the sum of its proper divisors (631718087).

1157042425 is a wasteful number, since it uses less digits than its factorization.

1157042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601089 (or 601084 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 1157042425 is about 34015.3263250553. The cubic root of 1157042425 is about 1049.8238328785.

Adding to 1157042425 its reverse (5242407511), we get a palindrome (6399449936).

The spelling of 1157042425 in words is "one billion, one hundred fifty-seven million, forty-two thousand, four hundred twenty-five".