1374153691 has 2 divisors, whose sum is σ = 1374153692. Its totient is φ = 1374153690.

The previous prime is 1374153593. The next prime is 1374153721. The reversal of 1374153691 is 1963514731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1374153691 - 2¹³ = 1374145499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374153091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687076845 + 687076846.

It is an arithmetic number, because the mean of its divisors is an integer number (687076846).

Almost surely, 2^1374153691 is an apocalyptic number.

1374153691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374153691 is an equidigital number, since it uses as much as digits as its factorization.

1374153691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 1374153691 is about 37069.5790507527. The cubic root of 1374153691 is about 1111.7618561142.

The spelling of 1374153691 in words is "one billion, three hundred seventy-four million, one hundred fifty-three thousand, six hundred ninety-one".