1253159450 has 12 divisors (see below), whose sum is σ = 2330876670. Its totient is φ = 501263760.

The previous prime is 1253159447. The next prime is 1253159461. The reversal of 1253159450 is 549513521.

It can be written as a sum of positive squares in 3 ways, for example, as 1135892209 + 117267241 = 33703^2 + 10829^2 .

It is a super-4 number, since 4×1253159450⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1253159450.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12531545 + ... + 12531644.

Almost surely, 2^1253159450 is an apocalyptic number.

1253159450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253159450 is a deficient number, since it is larger than the sum of its proper divisors (1077717220).

1253159450 is a wasteful number, since it uses less digits than its factorization.

1253159450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25063201 (or 25063196 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1253159450 is about 35399.9922316376. The cubic root of 1253159450 is about 1078.1241585935.

The spelling of 1253159450 in words is "one billion, two hundred fifty-three million, one hundred fifty-nine thousand, four hundred fifty".