901634231 has 2 divisors, whose sum is σ = 901634232. Its totient is φ = 901634230.

The previous prime is 901634213. The next prime is 901634233. The reversal of 901634231 is 132436109.

Together with previous prime (901634213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-901634231 is a prime.

It is a super-2 number, since 2×901634231² = 1625888573021922722, which contains 22 as substring.

Together with 901634233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 901634194 and 901634203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (901634233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450817115 + 450817116.

It is an arithmetic number, because the mean of its divisors is an integer number (450817116).

Almost surely, 2^901634231 is an apocalyptic number.

901634231 is a deficient number, since it is larger than the sum of its proper divisors (1).

901634231 is an equidigital number, since it uses as much as digits as its factorization.

901634231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 901634231 is about 30027.2248301437. The cubic root of 901634231 is about 966.0734137274.

The spelling of 901634231 in words is "nine hundred one million, six hundred thirty-four thousand, two hundred thirty-one".