1574427961 has 2 divisors, whose sum is σ = 1574427962. Its totient is φ = 1574427960.

The previous prime is 1574427923. The next prime is 1574427979. The reversal of 1574427961 is 1697244751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125199936 + 449228025 = 33544^2 + 21195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1574427961 - 2²⁹ = 1037557049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1574427061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 787213980 + 787213981.

It is an arithmetic number, because the mean of its divisors is an integer number (787213981).

Almost surely, 2^1574427961 is an apocalyptic number.

It is an amenable number.

1574427961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1574427961 is an equidigital number, since it uses as much as digits as its factorization.

1574427961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 1574427961 is about 39679.0619974817. The cubic root of 1574427961 is about 1163.3425098596.

The spelling of 1574427961 in words is "one billion, five hundred seventy-four million, four hundred twenty-seven thousand, nine hundred sixty-one".