1253510142 has 32 divisors (see below), whose sum is σ = 2645032320. Its totient is φ = 394935840.

The previous prime is 1253510131. The next prime is 1253510173. The reversal of 1253510142 is 2410153521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38092 + ... + 62912.

It is an arithmetic number, because the mean of its divisors is an integer number (82657260).

Almost surely, 2^1253510142 is an apocalyptic number.

1253510142 is an abundant number, since it is smaller than the sum of its proper divisors (1391522178).

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

1253510142 is a wasteful number, since it uses less digits than its factorization.

1253510142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25288.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1253510142 is about 35404.9451630701. The cubic root of 1253510142 is about 1078.2247188890.

Adding to 1253510142 its reverse (2410153521), we get a palindrome (3663663663).

The spelling of 1253510142 in words is "one billion, two hundred fifty-three million, five hundred ten thousand, one hundred forty-two".