61131202 has 24 divisors (see below), whose sum is σ = 101712240. Its totient is φ = 27327960.

The previous prime is 61131199. The next prime is 61131223. The reversal of 61131202 is 20213116.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98449 + ... + 99067.

It is an arithmetic number, because the mean of its divisors is an integer number (4238010).

Almost surely, 2^61131202 is an apocalyptic number.

61131202 is a deficient number, since it is larger than the sum of its proper divisors (40581038).

61131202 is a wasteful number, since it uses less digits than its factorization.

61131202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 61131202 is about 7818.6445116785. The cubic root of 61131202 is about 393.9317436966.

Adding to 61131202 its reverse (20213116), we get a palindrome (81344318).

It can be divided in two parts, 611 and 31202, that added together give a palindrome (31813).

The spelling of 61131202 in words is "sixty-one million, one hundred thirty-one thousand, two hundred two".