2397516149 has 20 divisors (see below), whose sum is σ = 2822903820. Its totient is φ = 2035938240.

The previous prime is 2397516139. The next prime is 2397516167. The reversal of 2397516149 is 9416157932.

It can be written as a sum of positive squares in 2 ways, for example, as 1237773124 + 1159743025 = 35182^2 + 34055^2 .

It is not a de Polignac number, because 2397516149 - 2¹² = 2397512053 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 (2397516119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 257129 + ... + 266289.

It is an arithmetic number, because the mean of its divisors is an integer number (141145191).

Almost surely, 2^2397516149 is an apocalyptic number.

It is an amenable number.

2397516149 is a deficient number, since it is larger than the sum of its proper divisors (425387671).

2397516149 is an frugal number, since it uses more digits than its factorization.

2397516149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298 (or 9277 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 2397516149 is about 48964.4375950546. The cubic root of 2397516149 is about 1338.4038597048.

The spelling of 2397516149 in words is "two billion, three hundred ninety-seven million, five hundred sixteen thousand, one hundred forty-nine".