1254251461 has 2 divisors, whose sum is σ = 1254251462. Its totient is φ = 1254251460.

The previous prime is 1254251443. The next prime is 1254251473. The reversal of 1254251461 is 1641524521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161514561 + 92736900 = 34081^2 + 9630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254251461 - 2¹⁹ = 1253727173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254251861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627125730 + 627125731.

It is an arithmetic number, because the mean of its divisors is an integer number (627125731).

Almost surely, 2^1254251461 is an apocalyptic number.

It is an amenable number.

1254251461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254251461 is an equidigital number, since it uses as much as digits as its factorization.

1254251461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 31.

The square root of 1254251461 is about 35415.4127605482. The cubic root of 1254251461 is about 1078.4372290572.

Adding to 1254251461 its reverse (1641524521), we get a palindrome (2895775982).

The spelling of 1254251461 in words is "one billion, two hundred fifty-four million, two hundred fifty-one thousand, four hundred sixty-one".