290112231 has 8 divisors (see below), whose sum is σ = 387612544. Its totient is φ = 193010040.

The previous prime is 290112217. The next prime is 290112331. The reversal of 290112231 is 132211092.

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

It is not a de Polignac number, because 290112231 - 2⁷ = 290112103 is a prime.

It is a super-2 number, since 2×290112231² = 168330213151594722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 290112198 and 290112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290112331) 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, 97825 + ... + 100746.

It is an arithmetic number, because the mean of its divisors is an integer number (48451568).

Almost surely, 2^290112231 is an apocalyptic number.

290112231 is a deficient number, since it is larger than the sum of its proper divisors (97500313).

290112231 is a wasteful number, since it uses less digits than its factorization.

290112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199061.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 290112231 is about 17032.6812627959. The cubic root of 290112231 is about 661.9959710175.

The spelling of 290112231 in words is "two hundred ninety million, one hundred twelve thousand, two hundred thirty-one".