233136397 has 8 divisors (see below), whose sum is σ = 251196344. Its totient is φ = 215094528.

The previous prime is 233136391. The next prime is 233136401. The reversal of 233136397 is 793631332.

233136397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 75533481 + 157602916 = 8691^2 + 12554^2 .

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 233136397 - 2¹⁹ = 232612109 is a prime.

It is a super-2 number, since 2×233136397² = 108705159212283218, 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 (233136391) 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, 35353 + ... + 41425.

It is an arithmetic number, because the mean of its divisors is an integer number (31399543).

Almost surely, 2^233136397 is an apocalyptic number.

It is an amenable number.

233136397 is a deficient number, since it is larger than the sum of its proper divisors (18059947).

233136397 is a wasteful number, since it uses less digits than its factorization.

233136397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039.

The product of its digits is 61236, while the sum is 37.

The square root of 233136397 is about 15268.8047010891. The cubic root of 233136397 is about 615.4649991986.

The spelling of 233136397 in words is "two hundred thirty-three million, one hundred thirty-six thousand, three hundred ninety-seven".