101572231 has 2 divisors, whose sum is σ = 101572232. Its totient is φ = 101572230.

The previous prime is 101572199. The next prime is 101572241. The reversal of 101572231 is 132275101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101572231 - 2⁵ = 101572199 is a prime.

It is a super-2 number, since 2×101572231² = 20633836220634722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101572241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50786115 + 50786116.

It is an arithmetic number, because the mean of its divisors is an integer number (50786116).

Almost surely, 2^101572231 is an apocalyptic number.

101572231 is a deficient number, since it is larger than the sum of its proper divisors (1).

101572231 is an equidigital number, since it uses as much as digits as its factorization.

101572231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 101572231 is about 10078.3049666102. The cubic root of 101572231 is about 466.5787950765.

The spelling of 101572231 in words is "one hundred one million, five hundred seventy-two thousand, two hundred thirty-one".