1452631549 has 2 divisors, whose sum is σ = 1452631550. Its totient is φ = 1452631548.

The previous prime is 1452631541. The next prime is 1452631559. The reversal of 1452631549 is 9451362541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056900100 + 395731449 = 32510^2 + 19893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452631549 - 2³ = 1452631541 is a prime.

It is a super-2 number, since 2×1452631549² = 4220276834300278802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1452631541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726315774 + 726315775.

It is an arithmetic number, because the mean of its divisors is an integer number (726315775).

Almost surely, 2^1452631549 is an apocalyptic number.

It is an amenable number.

1452631549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1452631549 is an equidigital number, since it uses as much as digits as its factorization.

1452631549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 1452631549 is about 38113.4037970895. The cubic root of 1452631549 is about 1132.5354998318.

The spelling of 1452631549 in words is "one billion, four hundred fifty-two million, six hundred thirty-one thousand, five hundred forty-nine".