1097122642 has 96 divisors (see below), whose sum is σ = 2233002816. Its totient is φ = 398361600.

The previous prime is 1097122627. The next prime is 1097122657. The reversal of 1097122642 is 2462217901.

It is an interprime number because it is at equal distance from previous prime (1097122627) and next prime (1097122657).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 1097122598 and 1097122607.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2400478 + ... + 2400934.

It is an arithmetic number, because the mean of its divisors is an integer number (23260446).

Almost surely, 2^1097122642 is an apocalyptic number.

1097122642 is an abundant number, since it is smaller than the sum of its proper divisors (1135880174).

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

1097122642 is a wasteful number, since it uses less digits than its factorization.

1097122642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1097122642 is about 33122.8416957241. The cubic root of 1097122642 is about 1031.3792569565.

The spelling of 1097122642 in words is "one billion, ninety-seven million, one hundred twenty-two thousand, six hundred forty-two".