23142532 has 48 divisors (see below), whose sum is σ = 49956480. Its totient is φ = 9158400.

The previous prime is 23142529. The next prime is 23142541. The reversal of 23142532 is 23524132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21282 + ... + 22342.

It is an arithmetic number, because the mean of its divisors is an integer number (1040760).

Almost surely, 2^23142532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23142532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24978240).

23142532 is an abundant number, since it is smaller than the sum of its proper divisors (26813948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23142532 is a wasteful number, since it uses less digits than its factorization.

23142532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1130 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 23142532 is about 4810.6685606057. The cubic root of 23142532 is about 284.9729409008.

Adding to 23142532 its reverse (23524132), we get a palindrome (46666664).

The spelling of 23142532 in words is "twenty-three million, one hundred forty-two thousand, five hundred thirty-two".