1157745472 has 28 divisors (see below), whose sum is σ = 2474126116. Its totient is φ = 534343680.

The previous prime is 1157745467. The next prime is 1157745493. The reversal of 1157745472 is 2745477511.

It can be written as a sum of positive squares in 2 ways, for example, as 163226176 + 994519296 = 12776^2 + 31536^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694929 + ... + 696592.

It is an arithmetic number, because the mean of its divisors is an integer number (88361647).

Almost surely, 2^1157745472 is an apocalyptic number.

It is an amenable number.

1157745472 is an abundant number, since it is smaller than the sum of its proper divisors (1316380644).

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

1157745472 is a wasteful number, since it uses less digits than its factorization.

1157745472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391546 (or 1391536 counting only the distinct ones).

The product of its digits is 274400, while the sum is 43.

The square root of 1157745472 is about 34025.6590237427. The cubic root of 1157745472 is about 1050.0364226217.

The spelling of 1157745472 in words is "one billion, one hundred fifty-seven million, seven hundred forty-five thousand, four hundred seventy-two".