1374145457 has 2 divisors, whose sum is σ = 1374145458. Its totient is φ = 1374145456.

The previous prime is 1374145447. The next prime is 1374145477. The reversal of 1374145457 is 7545414731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1198821376 + 175324081 = 34624^2 + 13241^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374145457 - 2⁴ = 1374145441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374145447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687072728 + 687072729.

It is an arithmetic number, because the mean of its divisors is an integer number (687072729).

Almost surely, 2^1374145457 is an apocalyptic number.

It is an amenable number.

1374145457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374145457 is an equidigital number, since it uses as much as digits as its factorization.

1374145457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 41.

The square root of 1374145457 is about 37069.4679891687. The cubic root of 1374145457 is about 1111.7596355316.

The spelling of 1374145457 in words is "one billion, three hundred seventy-four million, one hundred forty-five thousand, four hundred fifty-seven".