61346731 has 4 divisors (see below), whose sum is σ = 61366032. Its totient is φ = 61327432.

The previous prime is 61346723. The next prime is 61346743. The reversal of 61346731 is 13764316.

61346731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61346731 - 2³ = 61346723 is a prime.

It is a super-2 number, since 2×61346731² = 7526842808772722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61346693 and 61346702.

It is not an unprimeable number, because it can be changed into a prime (61346431) 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 in 3 ways as a sum of consecutive naturals, for example, 3631 + ... + 11656.

It is an arithmetic number, because the mean of its divisors is an integer number (15341508).

Almost surely, 2^61346731 is an apocalyptic number.

61346731 is a deficient number, since it is larger than the sum of its proper divisors (19301).

61346731 is a wasteful number, since it uses less digits than its factorization.

61346731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19300.

The product of its digits is 9072, while the sum is 31.

The square root of 61346731 is about 7832.4154001176. The cubic root of 61346731 is about 394.3941596474.

The spelling of 61346731 in words is "sixty-one million, three hundred forty-six thousand, seven hundred thirty-one".