1254772513 has 2 divisors, whose sum is σ = 1254772514. Its totient is φ = 1254772512.

The previous prime is 1254772511. The next prime is 1254772531. The reversal of 1254772513 is 3152774521.

Together with next prime (1254772531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1245242944 + 9529569 = 35288^2 + 3087^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254772513 - 2¹ = 1254772511 is a prime.

Together with 1254772511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1254772511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627386256 + 627386257.

It is an arithmetic number, because the mean of its divisors is an integer number (627386257).

Almost surely, 2^1254772513 is an apocalyptic number.

It is an amenable number.

1254772513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254772513 is an equidigital number, since it uses as much as digits as its factorization.

1254772513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 1254772513 is about 35422.7682853839. The cubic root of 1254772513 is about 1078.5865462921.

The spelling of 1254772513 in words is "one billion, two hundred fifty-four million, seven hundred seventy-two thousand, five hundred thirteen".