1097527140 has 72 divisors (see below), whose sum is σ = 3525008760. Its totient is φ = 275457024.

The previous prime is 1097527129. The next prime is 1097527169. The reversal of 1097527140 is 417257901.

It is a happy number.

1097527140 is a `hidden beast` number, since 1 + 0 + 97 + 527 + 1 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 212226624 + 885300516 = 14568^2 + 29754^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1097527095 and 1097527104.

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, 176275 + ... + 182394.

It is an arithmetic number, because the mean of its divisors is an integer number (48958455).

Almost surely, 2^1097527140 is an apocalyptic number.

1097527140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097527140 is an abundant number, since it is smaller than the sum of its proper divisors (2427481620).

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

1097527140 is a wasteful number, since it uses less digits than its factorization.

1097527140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358701 (or 358696 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1097527140 is about 33128.9471610554. The cubic root of 1097527140 is about 1031.5059944089.

The spelling of 1097527140 in words is "one billion, ninety-seven million, five hundred twenty-seven thousand, one hundred forty".