113144425 has 12 divisors (see below), whose sum is σ = 140437440. Its totient is φ = 90426320.

The previous prime is 113144419. The next prime is 113144431. The reversal of 113144425 is 524441311.

It is an interprime number because it is at equal distance from previous prime (113144419) and next prime (113144431).

It is a de Polignac number, because none of the positive numbers 2^k-113144425 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 113144425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37524 + ... + 40426.

It is an arithmetic number, because the mean of its divisors is an integer number (11703120).

Almost surely, 2^113144425 is an apocalyptic number.

It is an amenable number.

113144425 is a deficient number, since it is larger than the sum of its proper divisors (27293015).

113144425 is a wasteful number, since it uses less digits than its factorization.

113144425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472 (or 4467 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 113144425 is about 10636.9368241050. The cubic root of 113144425 is about 483.6646941655.

Adding to 113144425 its reverse (524441311), we get a palindrome (637585736).

It can be divided in two parts, 113144 and 425, that added together give a square (113569 = 337²).

The spelling of 113144425 in words is "one hundred thirteen million, one hundred forty-four thousand, four hundred twenty-five".