235142566 has 4 divisors (see below), whose sum is σ = 352713852. Its totient is φ = 117571282.

The previous prime is 235142561. The next prime is 235142581. The reversal of 235142566 is 665241532.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235142561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58785640 + ... + 58785643.

It is an arithmetic number, because the mean of its divisors is an integer number (88178463).

Almost surely, 2^235142566 is an apocalyptic number.

235142566 is a deficient number, since it is larger than the sum of its proper divisors (117571286).

235142566 is a wasteful number, since it uses less digits than its factorization.

235142566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117571285.

The product of its digits is 43200, while the sum is 34.

The square root of 235142566 is about 15334.3590019277. The cubic root of 235142566 is about 617.2253449177.

The spelling of 235142566 in words is "two hundred thirty-five million, one hundred forty-two thousand, five hundred sixty-six".