7157451197 has 16 divisors (see below), whose sum is σ = 8315440560. Its totient is φ = 6100902912.

The previous prime is 7157451187. The next prime is 7157451211. The reversal of 7157451197 is 7911547517.

It can be written as a sum of positive squares in 8 ways, for example, as 405377956 + 6752073241 = 20134^2 + 82171^2 .

It is not a de Polignac number, because 7157451197 - 2⁴ = 7157451181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7157451157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293822 + ... + 317247.

It is an arithmetic number, because the mean of its divisors is an integer number (519715035).

Almost surely, 2^7157451197 is an apocalyptic number.

It is an amenable number.

7157451197 is a deficient number, since it is larger than the sum of its proper divisors (1157989363).

7157451197 is a wasteful number, since it uses less digits than its factorization.

7157451197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611152.

The product of its digits is 308700, while the sum is 47.

The square root of 7157451197 is about 84601.7210049536. The cubic root of 7157451197 is about 1927.1675093323.

The spelling of 7157451197 in words is "seven billion, one hundred fifty-seven million, four hundred fifty-one thousand, one hundred ninety-seven".