61476139 has 2 divisors, whose sum is σ = 61476140. Its totient is φ = 61476138.

The previous prime is 61476119. The next prime is 61476161. The reversal of 61476139 is 93167416.

61476139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61476139 - 2⁷ = 61476011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61476098 and 61476107.

It is not a weakly prime, because it can be changed into another prime (61476119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30738069 + 30738070.

It is an arithmetic number, because the mean of its divisors is an integer number (30738070).

Almost surely, 2^61476139 is an apocalyptic number.

61476139 is a deficient number, since it is larger than the sum of its proper divisors (1).

61476139 is an equidigital number, since it uses as much as digits as its factorization.

61476139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 61476139 is about 7840.6721012934. The cubic root of 61476139 is about 394.6712834286.

The spelling of 61476139 in words is "sixty-one million, four hundred seventy-six thousand, one hundred thirty-nine".