235140663 has 4 divisors (see below), whose sum is σ = 313520888. Its totient is φ = 156760440.

The previous prime is 235140623. The next prime is 235140679. The reversal of 235140663 is 366041532.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 235140663 - 2⁸ = 235140407 is a prime.

It is a super-2 number, since 2×235140663² = 110582262792159138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 235140663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235140623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39190108 + ... + 39190113.

It is an arithmetic number, because the mean of its divisors is an integer number (78380222).

Almost surely, 2^235140663 is an apocalyptic number.

235140663 is a deficient number, since it is larger than the sum of its proper divisors (78380225).

235140663 is an equidigital number, since it uses as much as digits as its factorization.

235140663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78380224.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 235140663 is about 15334.2969516049. The cubic root of 235140663 is about 617.2236798527.

The spelling of 235140663 in words is "two hundred thirty-five million, one hundred forty thousand, six hundred sixty-three".