231061148 has 6 divisors (see below), whose sum is σ = 404357016. Its totient is φ = 115530572.

The previous prime is 231061141. The next prime is 231061211. The reversal of 231061148 is 841160132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231061141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28882640 + ... + 28882647.

It is an arithmetic number, because the mean of its divisors is an integer number (67392836).

Almost surely, 2^231061148 is an apocalyptic number.

It is an amenable number.

231061148 is a deficient number, since it is larger than the sum of its proper divisors (173295868).

231061148 is a wasteful number, since it uses less digits than its factorization.

231061148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57765291 (or 57765289 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 231061148 is about 15200.6956419764. The cubic root of 231061148 is about 613.6333793681.

The spelling of 231061148 in words is "two hundred thirty-one million, sixty-one thousand, one hundred forty-eight".