523237142 has 4 divisors (see below), whose sum is σ = 784855716. Its totient is φ = 261618570.

The previous prime is 523237133. The next prime is 523237157. The reversal of 523237142 is 241732325.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130809284 + ... + 130809287.

It is an arithmetic number, because the mean of its divisors is an integer number (196213929).

Almost surely, 2^523237142 is an apocalyptic number.

523237142 is a deficient number, since it is larger than the sum of its proper divisors (261618574).

523237142 is a wasteful number, since it uses less digits than its factorization.

523237142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261618573.

The product of its digits is 10080, while the sum is 29.

The square root of 523237142 is about 22874.3774122926. The cubic root of 523237142 is about 805.8103753803.

Adding to 523237142 its reverse (241732325), we get a palindrome (764969467).

The spelling of 523237142 in words is "five hundred twenty-three million, two hundred thirty-seven thousand, one hundred forty-two".