1452638251 has 2 divisors, whose sum is σ = 1452638252. Its totient is φ = 1452638250.

The previous prime is 1452638249. The next prime is 1452638309. The reversal of 1452638251 is 1528362541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1452638251 - 2¹ = 1452638249 is a prime.

It is a super-2 number, since 2×1452638251² = 4220315776536678002, which contains 22 as substring.

Together with 1452638249, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1452638251.

It is not a weakly prime, because it can be changed into another prime (1452638051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726319125 + 726319126.

It is an arithmetic number, because the mean of its divisors is an integer number (726319126).

Almost surely, 2^1452638251 is an apocalyptic number.

1452638251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452638251 is an equidigital number, since it uses as much as digits as its factorization.

1452638251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The square root of 1452638251 is about 38113.4917188126. The cubic root of 1452638251 is about 1132.5372415538.

The spelling of 1452638251 in words is "one billion, four hundred fifty-two million, six hundred thirty-eight thousand, two hundred fifty-one".