61231230 has 24 divisors (see below), whose sum is σ = 159201432. Its totient is φ = 16328304.

The previous prime is 61231223. The next prime is 61231237. The reversal of 61231230 is 3213216.

61231230 is a `hidden beast` number, since 612 + 31 + 23 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (61231223) and next prime (61231237).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61231237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340084 + ... + 340263.

It is an arithmetic number, because the mean of its divisors is an integer number (6633393).

Almost surely, 2^61231230 is an apocalyptic number.

61231230 is an abundant number, since it is smaller than the sum of its proper divisors (97970202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61231230 is a wasteful number, since it uses less digits than its factorization.

61231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680360 (or 680357 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61231230 is about 7825.0386580515. The cubic root of 61231230 is about 394.1464879981.

Adding to 61231230 its reverse (3213216), we get a palindrome (64444446).

The spelling of 61231230 in words is "sixty-one million, two hundred thirty-one thousand, two hundred thirty".