45431125 has 16 divisors (see below), whose sum is σ = 57507840. Its totient is φ = 35826000.

The previous prime is 45431119. The next prime is 45431131. The reversal of 45431125 is 52113454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45431119) and next prime (45431131).

It is not a de Polignac number, because 45431125 - 2³ = 45431117 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 45431125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6316 + ... + 11434.

It is an arithmetic number, because the mean of its divisors is an integer number (3594240).

Almost surely, 2^45431125 is an apocalyptic number.

It is an amenable number.

45431125 is a deficient number, since it is larger than the sum of its proper divisors (12076715).

45431125 is an equidigital number, since it uses as much as digits as its factorization.

45431125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205 (or 5195 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 45431125 is about 6740.2614934437. The cubic root of 45431125 is about 356.8216225786.

Adding to 45431125 its reverse (52113454), we get a palindrome (97544579).

The spelling of 45431125 in words is "forty-five million, four hundred thirty-one thousand, one hundred twenty-five".