61931230 has 8 divisors (see below), whose sum is σ = 111476232. Its totient is φ = 24772488.

The previous prime is 61931213. The next prime is 61931237. The reversal of 61931230 is 3213916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61931195 and 61931204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61931237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096552 + ... + 3096571.

It is an arithmetic number, because the mean of its divisors is an integer number (13934529).

Almost surely, 2^61931230 is an apocalyptic number.

61931230 is a deficient number, since it is larger than the sum of its proper divisors (49545002).

61931230 is a wasteful number, since it uses less digits than its factorization.

61931230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193130.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 61931230 is about 7869.6397630387. The cubic root of 61931230 is about 395.6427712352.

The spelling of 61931230 in words is "sixty-one million, nine hundred thirty-one thousand, two hundred thirty".