233685145 has 8 divisors (see below), whose sum is σ = 296917704. Its totient is φ = 175951104.

The previous prime is 233685139. The next prime is 233685163. The reversal of 233685145 is 541586332.

It can be written as a sum of positive squares in 4 ways, for example, as 28164249 + 205520896 = 5307^2 + 14336^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 233685145 - 2²³ = 225296537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374534 + ... + 1374703.

It is an arithmetic number, because the mean of its divisors is an integer number (37114713).

Almost surely, 2^233685145 is an apocalyptic number.

It is an amenable number.

233685145 is a deficient number, since it is larger than the sum of its proper divisors (63232559).

233685145 is a wasteful number, since it uses less digits than its factorization.

233685145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749259.

The product of its digits is 86400, while the sum is 37.

The square root of 233685145 is about 15286.7637189825. The cubic root of 233685145 is about 615.9475072279.

The spelling of 233685145 in words is "two hundred thirty-three million, six hundred eighty-five thousand, one hundred forty-five".