1254251501 has 2 divisors, whose sum is σ = 1254251502. Its totient is φ = 1254251500.

The previous prime is 1254251473. The next prime is 1254251507. The reversal of 1254251501 is 1051524521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1247926276 + 6325225 = 35326^2 + 2515^2 .

It is an emirp because it is prime and its reverse (1051524521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1254251501 - 2⁶ = 1254251437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254251507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627125750 + 627125751.

It is an arithmetic number, because the mean of its divisors is an integer number (627125751).

Almost surely, 2^1254251501 is an apocalyptic number.

It is an amenable number.

1254251501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254251501 is an equidigital number, since it uses as much as digits as its factorization.

1254251501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1254251501 is about 35415.4133252741. The cubic root of 1254251501 is about 1078.4372405215.

The spelling of 1254251501 in words is "one billion, two hundred fifty-four million, two hundred fifty-one thousand, five hundred one".