1097540452 has 6 divisors (see below), whose sum is σ = 1920695798. Its totient is φ = 548770224.

The previous prime is 1097540441. The next prime is 1097540489. The reversal of 1097540452 is 2540457901.

It can be written as a sum of positive squares in only one way, i.e., 558093376 + 539447076 = 23624^2 + 23226^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137192553 + ... + 137192560.

Almost surely, 2^1097540452 is an apocalyptic number.

It is an amenable number.

1097540452 is a deficient number, since it is larger than the sum of its proper divisors (823155346).

1097540452 is a wasteful number, since it uses less digits than its factorization.

1097540452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274385117 (or 274385115 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1097540452 is about 33129.1480723547. The cubic root of 1097540452 is about 1031.5101648000.

The spelling of 1097540452 in words is "one billion, ninety-seven million, five hundred forty thousand, four hundred fifty-two".