253145342 has 16 divisors (see below), whose sum is σ = 390582240. Its totient is φ = 122961888.

The previous prime is 253145329. The next prime is 253145353. The reversal of 253145342 is 243541352.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53759 + ... + 58277.

It is an arithmetic number, because the mean of its divisors is an integer number (24411390).

Almost surely, 2^253145342 is an apocalyptic number.

253145342 is a deficient number, since it is larger than the sum of its proper divisors (137436898).

253145342 is a wasteful number, since it uses less digits than its factorization.

253145342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315.

The product of its digits is 14400, while the sum is 29.

The square root of 253145342 is about 15910.5418512381. The cubic root of 253145342 is about 632.5914438135.

Adding to 253145342 its reverse (243541352), we get a palindrome (496686694).

The spelling of 253145342 in words is "two hundred fifty-three million, one hundred forty-five thousand, three hundred forty-two".