1097738148 has 144 divisors (see below), whose sum is σ = 3017011200. Its totient is φ = 309329280.

The previous prime is 1097738137. The next prime is 1097738149. The reversal of 1097738148 is 8418377901.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1097738097 and 1097738106.

It is not an unprimeable number, because it can be changed into a prime (1097738149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1194033 + ... + 1194951.

Almost surely, 2^1097738148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097738148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508505600).

1097738148 is an abundant number, since it is smaller than the sum of its proper divisors (1919273052).

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

1097738148 is a wasteful number, since it uses less digits than its factorization.

1097738148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1097738148 is about 33132.1316549358. The cubic root of 1097738148 is about 1031.5720951493.

The spelling of 1097738148 in words is "one billion, ninety-seven million, seven hundred thirty-eight thousand, one hundred forty-eight".