231542006 has 16 divisors (see below), whose sum is σ = 376714800. Its totient is φ = 106302720.

The previous prime is 231541951. The next prime is 231542009. The reversal of 231542006 is 600245132.

It is a super-2 number, since 2×231542006² = 107223401085008072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231542009) 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, 81656 + ... + 84443.

It is an arithmetic number, because the mean of its divisors is an integer number (23544675).

Almost surely, 2^231542006 is an apocalyptic number.

231542006 is a deficient number, since it is larger than the sum of its proper divisors (145172794).

231542006 is a wasteful number, since it uses less digits than its factorization.

231542006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166159.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 231542006 is about 15216.5043948996. The cubic root of 231542006 is about 614.0587589259.

Adding to 231542006 its reverse (600245132), we get a palindrome (831787138).

The spelling of 231542006 in words is "two hundred thirty-one million, five hundred forty-two thousand, six".