1253445532 has 12 divisors (see below), whose sum is σ = 2194644256. Its totient is φ = 626404320.

The previous prime is 1253445527. The next prime is 1253445593. The reversal of 1253445532 is 2355443521.

It is a super-2 number, since 2×1253445532² = 3142251403381526048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70644 + ... + 86587.

Almost surely, 2^1253445532 is an apocalyptic number.

It is an amenable number.

1253445532 is a deficient number, since it is larger than the sum of its proper divisors (941198724).

1253445532 is a wasteful number, since it uses less digits than its factorization.

1253445532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159228 (or 159226 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 1253445532 is about 35404.0327081535. The cubic root of 1253445532 is about 1078.2061934981.

The spelling of 1253445532 in words is "one billion, two hundred fifty-three million, four hundred forty-five thousand, five hundred thirty-two".