231061646 has 16 divisors (see below), whose sum is σ = 350488320. Its totient is φ = 114239160.

The previous prime is 231061643. The next prime is 231061667. The reversal of 231061646 is 646160132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231061643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73805 + ... + 76871.

It is an arithmetic number, because the mean of its divisors is an integer number (21905520).

Almost surely, 2^231061646 is an apocalyptic number.

231061646 is a deficient number, since it is larger than the sum of its proper divisors (119426674).

231061646 is a wasteful number, since it uses less digits than its factorization.

231061646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 231061646 is about 15200.7120227968. The cubic root of 231061646 is about 613.6338202171.

The spelling of 231061646 in words is "two hundred thirty-one million, sixty-one thousand, six hundred forty-six".