1157145342 has 32 divisors (see below), whose sum is σ = 2354284032. Its totient is φ = 379076544.

The previous prime is 1157145329. The next prime is 1157145373. The reversal of 1157145342 is 2435417511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183018 + ... + 189234.

It is an arithmetic number, because the mean of its divisors is an integer number (73571376).

Almost surely, 2^1157145342 is an apocalyptic number.

1157145342 is an abundant number, since it is smaller than the sum of its proper divisors (1197138690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157145342 is a wasteful number, since it uses less digits than its factorization.

1157145342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752.

The product of its digits is 16800, while the sum is 33.

The square root of 1157145342 is about 34016.8390947778. The cubic root of 1157145342 is about 1049.8549586505.

The spelling of 1157145342 in words is "one billion, one hundred fifty-seven million, one hundred forty-five thousand, three hundred forty-two".