61131342 has 32 divisors (see below), whose sum is σ = 124248960. Its totient is φ = 20049120.

The previous prime is 61131319. The next prime is 61131383. The reversal of 61131342 is 24313116.

61131342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137773 + ... + 138215.

It is an arithmetic number, because the mean of its divisors is an integer number (3882780).

Almost surely, 2^61131342 is an apocalyptic number.

61131342 is an abundant number, since it is smaller than the sum of its proper divisors (63117618).

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

61131342 is a wasteful number, since it uses less digits than its factorization.

61131342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 432, while the sum is 21.

The square root of 61131342 is about 7818.6534646319. The cubic root of 61131342 is about 393.9320444181.

Adding to 61131342 its reverse (24313116), we get a palindrome (85444458).

The spelling of 61131342 in words is "sixty-one million, one hundred thirty-one thousand, three hundred forty-two".