1254672589 has 2 divisors, whose sum is σ = 1254672590. Its totient is φ = 1254672588.

The previous prime is 1254672557. The next prime is 1254672631. The reversal of 1254672589 is 9852764521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 736199689 + 518472900 = 27133^2 + 22770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254672589 - 2⁵ = 1254672557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254672509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627336294 + 627336295.

It is an arithmetic number, because the mean of its divisors is an integer number (627336295).

Almost surely, 2^1254672589 is an apocalyptic number.

It is an amenable number.

1254672589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254672589 is an equidigital number, since it uses as much as digits as its factorization.

1254672589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The square root of 1254672589 is about 35421.3578085313. The cubic root of 1254672589 is about 1078.5579143975.

The spelling of 1254672589 in words is "one billion, two hundred fifty-four million, six hundred seventy-two thousand, five hundred eighty-nine".