61031602 has 8 divisors (see below), whose sum is σ = 94704300. Its totient is φ = 29463504.

The previous prime is 61031599. The next prime is 61031603. The reversal of 61031602 is 20613016.

It can be written as a sum of positive squares in 2 ways, for example, as 61011721 + 19881 = 7811^2 + 141^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61031602.

It is not an unprimeable number, because it can be changed into a prime (61031603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526077 + ... + 526192.

Almost surely, 2^61031602 is an apocalyptic number.

61031602 is a deficient number, since it is larger than the sum of its proper divisors (33672698).

61031602 is a wasteful number, since it uses less digits than its factorization.

61031602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052300.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 61031602 is about 7812.2725246883. The cubic root of 61031602 is about 393.7176853635.

Adding to 61031602 its reverse (20613016), we get a palindrome (81644618).

The spelling of 61031602 in words is "sixty-one million, thirty-one thousand, six hundred two".