1253532412 has 36 divisors (see below), whose sum is σ = 2435205528. Its totient is φ = 564124000.

The previous prime is 1253532377. The next prime is 1253532419. The reversal of 1253532412 is 2142353521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253532419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36063 + ... + 61705.

It is an arithmetic number, because the mean of its divisors is an integer number (67644598).

Almost surely, 2^1253532412 is an apocalyptic number.

It is an amenable number.

1253532412 is a deficient number, since it is larger than the sum of its proper divisors (1181673116).

1253532412 is a wasteful number, since it uses less digits than its factorization.

1253532412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25770 (or 25757 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1253532412 is about 35405.2596657615. The cubic root of 1253532412 is about 1078.2311041378.

Adding to 1253532412 its reverse (2142353521), we get a palindrome (3395885933).

It can be divided in two parts, 125353 and 2412, that added together give a triangular number (127765 = T₅₀₅).

The spelling of 1253532412 in words is "one billion, two hundred fifty-three million, five hundred thirty-two thousand, four hundred twelve".