1374334721 has 2 divisors, whose sum is σ = 1374334722. Its totient is φ = 1374334720.

The previous prime is 1374334711. The next prime is 1374334747. The reversal of 1374334721 is 1274334731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895206400 + 479128321 = 29920^2 + 21889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374334721 - 2²² = 1370140417 is a prime.

It is a super-2 number, since 2×1374334721² = 3777591850692295682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1374334711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687167360 + 687167361.

It is an arithmetic number, because the mean of its divisors is an integer number (687167361).

Almost surely, 2^1374334721 is an apocalyptic number.

It is an amenable number.

1374334721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374334721 is an equidigital number, since it uses as much as digits as its factorization.

1374334721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 35.

The square root of 1374334721 is about 37072.0207299251. The cubic root of 1374334721 is about 1111.8106748678.

The spelling of 1374334721 in words is "one billion, three hundred seventy-four million, three hundred thirty-four thousand, seven hundred twenty-one".