101540231 has 8 divisors (see below), whose sum is σ = 112018704. Its totient is φ = 91442880.

The previous prime is 101540227. The next prime is 101540233. The reversal of 101540231 is 132045101.

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

It is a cyclic number.

It is not a de Polignac number, because 101540231 - 2² = 101540227 is a prime.

It is a super-2 number, since 2×101540231² = 20620837023066722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101540233) 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, 94721 + ... + 95786.

It is an arithmetic number, because the mean of its divisors is an integer number (14002338).

Almost surely, 2^101540231 is an apocalyptic number.

101540231 is a deficient number, since it is larger than the sum of its proper divisors (10478473).

101540231 is a wasteful number, since it uses less digits than its factorization.

101540231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190561.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101540231 is about 10076.7172730012. The cubic root of 101540231 is about 466.5297918876.

Adding to 101540231 its reverse (132045101), we get a palindrome (233585332).

The spelling of 101540231 in words is "one hundred one million, five hundred forty thousand, two hundred thirty-one".