251413142 has 8 divisors (see below), whose sum is σ = 381663576. Its totient is φ = 124191952.

The previous prime is 251413133. The next prime is 251413157. The reversal of 251413142 is 241314152.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 757103 + ... + 757434.

It is an arithmetic number, because the mean of its divisors is an integer number (47707947).

Almost surely, 2^251413142 is an apocalyptic number.

251413142 is a deficient number, since it is larger than the sum of its proper divisors (130250434).

251413142 is a wasteful number, since it uses less digits than its factorization.

251413142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514622.

The product of its digits is 960, while the sum is 23.

The square root of 251413142 is about 15856.0128027194. The cubic root of 251413142 is about 631.1452603792.

Adding to 251413142 its reverse (241314152), we get a palindrome (492727294).

The spelling of 251413142 in words is "two hundred fifty-one million, four hundred thirteen thousand, one hundred forty-two".