1253456142 has 16 divisors (see below), whose sum is σ = 2507308752. Its totient is φ = 417752640.

The previous prime is 1253456137. The next prime is 1253456173. The reversal of 1253456142 is 2416543521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38868 + ... + 63384.

It is an arithmetic number, because the mean of its divisors is an integer number (156706797).

Almost surely, 2^1253456142 is an apocalyptic number.

1253456142 is an abundant number, since it is smaller than the sum of its proper divisors (1253852610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253456142 is a wasteful number, since it uses less digits than its factorization.

1253456142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33043.

The product of its digits is 28800, while the sum is 33.

The square root of 1253456142 is about 35404.1825495237. The cubic root of 1253456142 is about 1078.2092357086.

Adding to 1253456142 its reverse (2416543521), we get a palindrome (3669999663).

The spelling of 1253456142 in words is "one billion, two hundred fifty-three million, four hundred fifty-six thousand, one hundred forty-two".