1452989257 has 8 divisors (see below), whose sum is σ = 1467837000. Its totient is φ = 1438203264.

The previous prime is 1452989249. The next prime is 1452989323. The reversal of 1452989257 is 7529892541.

It can be written as a sum of positive squares in 4 ways, for example, as 546437376 + 906551881 = 23376^2 + 30109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1452989257 - 2³ = 1452989249 is a prime.

It is a super-2 number, since 2×1452989257² = 4222355561914824098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452989957) 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 in 7 ways as a sum of consecutive naturals, for example, 32619 + ... + 63007.

It is an arithmetic number, because the mean of its divisors is an integer number (183479625).

Almost surely, 2^1452989257 is an apocalyptic number.

It is an amenable number.

1452989257 is a deficient number, since it is larger than the sum of its proper divisors (14847743).

1452989257 is a wasteful number, since it uses less digits than its factorization.

1452989257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30875.

The product of its digits is 1814400, while the sum is 52.

The square root of 1452989257 is about 38118.0961880312. The cubic root of 1452989257 is about 1132.6284538366.

The spelling of 1452989257 in words is "one billion, four hundred fifty-two million, nine hundred eighty-nine thousand, two hundred fifty-seven".