23142425 has 6 divisors (see below), whose sum is σ = 28696638. Its totient is φ = 18513920.

The previous prime is 23142421. The next prime is 23142463. The reversal of 23142425 is 52424132.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 64009 + 23078416 = 253^2 + 4804^2 .

It is not a de Polignac number, because 23142425 - 2² = 23142421 is a prime.

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 23142425.

It is not an unprimeable number, because it can be changed into a prime (23142421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462824 + ... + 462873.

It is an arithmetic number, because the mean of its divisors is an integer number (4782773).

Almost surely, 2^23142425 is an apocalyptic number.

23142425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23142425 is a deficient number, since it is larger than the sum of its proper divisors (5554213).

23142425 is an equidigital number, since it uses as much as digits as its factorization.

23142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925707 (or 925702 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 23142425 is about 4810.6574394775. The cubic root of 23142425 is about 284.9725017072.

Adding to 23142425 its reverse (52424132), we get a palindrome (75566557).

The spelling of 23142425 in words is "twenty-three million, one hundred forty-two thousand, four hundred twenty-five".