1374651617 has 2 divisors, whose sum is σ = 1374651618. Its totient is φ = 1374651616.

The previous prime is 1374651613. The next prime is 1374651673. The reversal of 1374651617 is 7161564731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1354902481 + 19749136 = 36809^2 + 4444^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374651617 - 2² = 1374651613 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374651613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687325808 + 687325809.

It is an arithmetic number, because the mean of its divisors is an integer number (687325809).

Almost surely, 2^1374651617 is an apocalyptic number.

It is an amenable number.

1374651617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374651617 is an equidigital number, since it uses as much as digits as its factorization.

1374651617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 1374651617 is about 37076.2945424701. The cubic root of 1374651617 is about 1111.8961225814.

The spelling of 1374651617 in words is "one billion, three hundred seventy-four million, six hundred fifty-one thousand, six hundred seventeen".