230473531 has 2 divisors, whose sum is σ = 230473532. Its totient is φ = 230473530.

The previous prime is 230473517. The next prime is 230473559. The reversal of 230473531 is 135374032.

It is an a-pointer prime, because the next prime (230473559) can be obtained adding 230473531 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230473531 - 2¹⁷ = 230342459 is a prime.

It is a super-2 number, since 2×230473531² = 106236096983215922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230473531.

It is not a weakly prime, because it can be changed into another prime (230473031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115236765 + 115236766.

It is an arithmetic number, because the mean of its divisors is an integer number (115236766).

Almost surely, 2^230473531 is an apocalyptic number.

230473531 is a deficient number, since it is larger than the sum of its proper divisors (1).

230473531 is an equidigital number, since it uses as much as digits as its factorization.

230473531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 230473531 is about 15181.3547155713. The cubic root of 230473531 is about 613.1127559908.

The spelling of 230473531 in words is "two hundred thirty million, four hundred seventy-three thousand, five hundred thirty-one".