61614731 has 4 divisors (see below), whose sum is σ = 63280032. Its totient is φ = 59949432.

The previous prime is 61614713. The next prime is 61614733. The reversal of 61614731 is 13741616.

61614731 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 61614731 - 2¹⁰ = 61613707 is a prime.

It is a super-2 number, since 2×61614731² = 7592750152404722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61614694 and 61614703.

It is not an unprimeable number, because it can be changed into a prime (61614733) 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, 832595 + ... + 832668.

It is an arithmetic number, because the mean of its divisors is an integer number (15820008).

Almost surely, 2^61614731 is an apocalyptic number.

61614731 is a deficient number, since it is larger than the sum of its proper divisors (1665301).

61614731 is a wasteful number, since it uses less digits than its factorization.

61614731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665300.

The product of its digits is 3024, while the sum is 29.

The square root of 61614731 is about 7849.5051436380. The cubic root of 61614731 is about 394.9676435601.

The spelling of 61614731 in words is "sixty-one million, six hundred fourteen thousand, seven hundred thirty-one".