61331002 has 12 divisors (see below), whose sum is σ = 97727310. Its totient is φ = 28861376.

The previous prime is 61330999. The next prime is 61331077. The reversal of 61331002 is 20013316.

It can be written as a sum of positive squares in 3 ways, for example, as 58201641 + 3129361 = 7629^2 + 1769^2 .

It is a super-2 number, since 2×61331002² = 7522983612648008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52477 + ... + 53632.

Almost surely, 2^61331002 is an apocalyptic number.

61331002 is a deficient number, since it is larger than the sum of its proper divisors (36396308).

61331002 is a wasteful number, since it uses less digits than its factorization.

61331002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106145 (or 106128 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 61331002 is about 7831.4112393617. The cubic root of 61331002 is about 394.3604498589.

Adding to 61331002 its reverse (20013316), we get a palindrome (81344318).

The spelling of 61331002 in words is "sixty-one million, three hundred thirty-one thousand, two".