230145493 has 2 divisors, whose sum is σ = 230145494. Its totient is φ = 230145492.

The previous prime is 230145431. The next prime is 230145523. The reversal of 230145493 is 394541032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157929489 + 72216004 = 12567^2 + 8498^2 .

It is a cyclic number.

It is not a de Polignac number, because 230145493 - 2²¹ = 228048341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230145403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115072746 + 115072747.

It is an arithmetic number, because the mean of its divisors is an integer number (115072747).

Almost surely, 2^230145493 is an apocalyptic number.

It is an amenable number.

230145493 is a deficient number, since it is larger than the sum of its proper divisors (1).

230145493 is an equidigital number, since it uses as much as digits as its factorization.

230145493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 230145493 is about 15170.5468919219. The cubic root of 230145493 is about 612.8217322907.

The spelling of 230145493 in words is "two hundred thirty million, one hundred forty-five thousand, four hundred ninety-three".