1157545270 has 64 divisors (see below), whose sum is σ = 2465280000. Its totient is φ = 382942080.

The previous prime is 1157545261. The next prime is 1157545271. The reversal of 1157545270 is 725457511.

It is a super-2 number, since 2×1157545270² = 2679822104198745800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157545271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082296 + ... + 1083364.

It is an arithmetic number, because the mean of its divisors is an integer number (38520000).

Almost surely, 2^1157545270 is an apocalyptic number.

1157545270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157545270 is an abundant number, since it is smaller than the sum of its proper divisors (1307734730).

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

1157545270 is a wasteful number, since it uses less digits than its factorization.

1157545270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613.

The product of its (nonzero) digits is 49000, while the sum is 37.

The square root of 1157545270 is about 34022.7169696954. The cubic root of 1157545270 is about 1049.9758936265.

The spelling of 1157545270 in words is "one billion, one hundred fifty-seven million, five hundred forty-five thousand, two hundred seventy".