1097325138 has 64 divisors (see below), whose sum is σ = 2707955712. Its totient is φ = 288671040.

The previous prime is 1097325109. The next prime is 1097325139. The reversal of 1097325138 is 8315237901.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1097325096 and 1097325105.

It is not an unprimeable number, because it can be changed into a prime (1097325139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232995 + ... + 237657.

It is an arithmetic number, because the mean of its divisors is an integer number (42311808).

Almost surely, 2^1097325138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097325138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353977856).

1097325138 is an abundant number, since it is smaller than the sum of its proper divisors (1610630574).

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

1097325138 is a wasteful number, since it uses less digits than its factorization.

1097325138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1097325138 is about 33125.8982972538. The cubic root of 1097325138 is about 1031.4427069660.

The spelling of 1097325138 in words is "one billion, ninety-seven million, three hundred twenty-five thousand, one hundred thirty-eight".