1157126394 has 16 divisors (see below), whose sum is σ = 2315462400. Its totient is φ = 385507200.

The previous prime is 1157126357. The next prime is 1157126407. The reversal of 1157126394 is 4936217511.

1157126394 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37719 + ... + 61130.

It is an arithmetic number, because the mean of its divisors is an integer number (144716400).

Almost surely, 2^1157126394 is an apocalyptic number.

1157126394 is an abundant number, since it is smaller than the sum of its proper divisors (1158336006).

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

1157126394 is a wasteful number, since it uses less digits than its factorization.

1157126394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100805.

The product of its digits is 45360, while the sum is 39.

The square root of 1157126394 is about 34016.5605845153. The cubic root of 1157126394 is about 1049.8492282380.

The spelling of 1157126394 in words is "one billion, one hundred fifty-seven million, one hundred twenty-six thousand, three hundred ninety-four".