1371397274 has 16 divisors (see below), whose sum is σ = 2269368360. Its totient is φ = 617514240.

The previous prime is 1371397273. The next prime is 1371397283. The reversal of 1371397274 is 4727931731.

It can be written as a sum of positive squares in 4 ways, for example, as 853516225 + 517881049 = 29215^2 + 22757^2 .

It is not an unprimeable number, because it can be changed into a prime (1371397273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642179 + ... + 644310.

Almost surely, 2^1371397274 is an apocalyptic number.

1371397274 is a deficient number, since it is larger than the sum of its proper divisors (897971086).

1371397274 is a wasteful number, since it uses less digits than its factorization.

1371397274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286545.

The product of its digits is 222264, while the sum is 44.

The square root of 1371397274 is about 37032.3814249097. The cubic root of 1371397274 is about 1111.0179969177.

The spelling of 1371397274 in words is "one billion, three hundred seventy-one million, three hundred ninety-seven thousand, two hundred seventy-four".