1097631455 has 16 divisors (see below), whose sum is σ = 1354484160. Its totient is φ = 853281792.

The previous prime is 1097631449. The next prime is 1097631473. The reversal of 1097631455 is 5541367901.

It is a cyclic number.

It is not a de Polignac number, because 1097631455 - 2⁶ = 1097631391 is a prime.

It is a super-2 number, since 2×1097631455² = 2409589622010834050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160751 + ... + 167439.

It is an arithmetic number, because the mean of its divisors is an integer number (84655260).

Almost surely, 2^1097631455 is an apocalyptic number.

1097631455 is a deficient number, since it is larger than the sum of its proper divisors (256852705).

1097631455 is an equidigital number, since it uses as much as digits as its factorization.

1097631455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1097631455 is about 33130.5215020832. The cubic root of 1097631455 is about 1031.5386733696.

The spelling of 1097631455 in words is "one billion, ninety-seven million, six hundred thirty-one thousand, four hundred fifty-five".