233152381 has 16 divisors (see below), whose sum is σ = 291985920. Its totient is φ = 180863280.

The previous prime is 233152343. The next prime is 233152397. The reversal of 233152381 is 183251332.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233152381 is a prime.

It is a super-2 number, since 2×233152381² = 108720065531938322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233152301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10810 + ... + 24148.

It is an arithmetic number, because the mean of its divisors is an integer number (18249120).

Almost surely, 2^233152381 is an apocalyptic number.

It is an amenable number.

233152381 is a deficient number, since it is larger than the sum of its proper divisors (58833539).

233152381 is a wasteful number, since it uses less digits than its factorization.

233152381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13584.

The product of its digits is 4320, while the sum is 28.

The square root of 233152381 is about 15269.3281122648. The cubic root of 233152381 is about 615.4790644524.

The spelling of 233152381 in words is "two hundred thirty-three million, one hundred fifty-two thousand, three hundred eighty-one".