1397001274 has 4 divisors (see below), whose sum is σ = 2095501914. Its totient is φ = 698500636.

The previous prime is 1397001271. The next prime is 1397001283. The reversal of 1397001274 is 4721007931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4721007931 = 68473 ⋅68947.

It can be written as a sum of positive squares in only one way, i.e., 1332761049 + 64240225 = 36507^2 + 8015^2 .

It is a super-2 number, since 2×1397001274² = 3903225119115246152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1397001271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349250317 + ... + 349250320.

Almost surely, 2^1397001274 is an apocalyptic number.

1397001274 is a deficient number, since it is larger than the sum of its proper divisors (698500640).

1397001274 is an equidigital number, since it uses as much as digits as its factorization.

1397001274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698500639.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1397001274 is about 37376.4802248687. The cubic root of 1397001274 is about 1117.8896469324.

The spelling of 1397001274 in words is "one billion, three hundred ninety-seven million, one thousand, two hundred seventy-four".