61031108 has 6 divisors (see below), whose sum is σ = 106804446. Its totient is φ = 30515552.

The previous prime is 61031101. The next prime is 61031119. The reversal of 61031108 is 80113016.

61031108 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60715264 + 315844 = 7792^2 + 562^2 .

It is a super-2 number, since 2×61031108² = 7449592287415328, which contains 22 as substring.

61031108 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 61031108.

It is not an unprimeable number, because it can be changed into a prime (61031101) 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 as a sum of consecutive naturals, namely, 7628885 + ... + 7628892.

It is an arithmetic number, because the mean of its divisors is an integer number (17800741).

Almost surely, 2^61031108 is an apocalyptic number.

It is an amenable number.

61031108 is a deficient number, since it is larger than the sum of its proper divisors (45773338).

61031108 is a wasteful number, since it uses less digits than its factorization.

61031108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15257781 (or 15257779 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 61031108 is about 7812.2409077038. The cubic root of 61031108 is about 393.7166230884.

It can be divided in two parts, 610 and 31108, that multiplied together give a triangular number (18975880 = T₆₁₆₀).

The spelling of 61031108 in words is "sixty-one million, thirty-one thousand, one hundred eight".