25123142 has 16 divisors (see below), whose sum is σ = 41513472. Its totient is φ = 11307720.

The previous prime is 25123129. The next prime is 25123159. The reversal of 25123142 is 24132152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3278 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592).

Almost surely, 2^25123142 is an apocalyptic number.

25123142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25123142 is a deficient number, since it is larger than the sum of its proper divisors (16390330).

25123142 is a wasteful number, since it uses less digits than its factorization.

25123142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11203.

The product of its digits is 480, while the sum is 20.

The square root of 25123142 is about 5012.2990732796. The cubic root of 25123142 is about 292.8810802337.

Adding to 25123142 its reverse (24132152), we get a palindrome (49255294).

The spelling of 25123142 in words is "twenty-five million, one hundred twenty-three thousand, one hundred forty-two".