61117002 has 24 divisors (see below), whose sum is σ = 133436160. Its totient is φ = 20216040.

The previous prime is 61116973. The next prime is 61117031. The reversal of 61117002 is 20071116.

It is an interprime number because it is at equal distance from previous prime (61116973) and next prime (61117031).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10602 + ... + 15317.

It is an arithmetic number, because the mean of its divisors is an integer number (5559840).

Almost surely, 2^61117002 is an apocalyptic number.

61117002 is an abundant number, since it is smaller than the sum of its proper divisors (72319158).

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

61117002 is a wasteful number, since it uses less digits than its factorization.

61117002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26058 (or 26055 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 61117002 is about 7817.7363731454. The cubic root of 61117002 is about 393.9012395582.

Adding to 61117002 its reverse (20071116), we get a palindrome (81188118).

The spelling of 61117002 in words is "sixty-one million, one hundred seventeen thousand, two".