231653602 has 4 divisors (see below), whose sum is σ = 347480406. Its totient is φ = 115826800.

The previous prime is 231653579. The next prime is 231653603. The reversal of 231653602 is 206356132.

231653602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 217297081 + 14356521 = 14741^2 + 3789^2 .

It is not an unprimeable number, because it can be changed into a prime (231653603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57913399 + ... + 57913402.

Almost surely, 2^231653602 is an apocalyptic number.

231653602 is a deficient number, since it is larger than the sum of its proper divisors (115826804).

231653602 is a wasteful number, since it uses less digits than its factorization.

231653602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115826803.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 231653602 is about 15220.1708926017. The cubic root of 231653602 is about 614.1573954486.

The spelling of 231653602 in words is "two hundred thirty-one million, six hundred fifty-three thousand, six hundred two".