61100613 has 12 divisors (see below), whose sum is σ = 100864608. Its totient is φ = 34914600.

The previous prime is 61100587. The next prime is 61100617. The reversal of 61100613 is 31600116.

It is not a de Polignac number, because 61100613 - 2¹⁰ = 61099589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61100617) by changing a digit.

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, 484863 + ... + 484988.

It is an arithmetic number, because the mean of its divisors is an integer number (8405384).

Almost surely, 2^61100613 is an apocalyptic number.

61100613 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

61100613 is a deficient number, since it is larger than the sum of its proper divisors (39763995).

61100613 is a wasteful number, since it uses less digits than its factorization.

61100613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969864 (or 969861 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 61100613 is about 7816.6881094233. The cubic root of 61100613 is about 393.8660271823.

Adding to 61100613 its reverse (31600116), we get a palindrome (92700729).

The spelling of 61100613 in words is "sixty-one million, one hundred thousand, six hundred thirteen".