1373522461 has 2 divisors, whose sum is σ = 1373522462. Its totient is φ = 1373522460.

The previous prime is 1373522413. The next prime is 1373522467. The reversal of 1373522461 is 1642253731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1361167236 + 12355225 = 36894^2 + 3515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373522461 - 2¹⁵ = 1373489693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373522467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686761230 + 686761231.

It is an arithmetic number, because the mean of its divisors is an integer number (686761231).

Almost surely, 2^1373522461 is an apocalyptic number.

It is an amenable number.

1373522461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373522461 is an equidigital number, since it uses as much as digits as its factorization.

1373522461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 1373522461 is about 37061.0639485701. The cubic root of 1373522461 is about 1111.5915974004.

The spelling of 1373522461 in words is "one billion, three hundred seventy-three million, five hundred twenty-two thousand, four hundred sixty-one".