45075431 has 4 divisors (see below), whose sum is σ = 45107232. Its totient is φ = 45043632.

The previous prime is 45075421. The next prime is 45075439. The reversal of 45075431 is 13457054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45075431 is a prime.

It is a super-2 number, since 2×45075431² = 4063588959671522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45075394 and 45075403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45075439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13670 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (11276808).

Almost surely, 2^45075431 is an apocalyptic number.

45075431 is a deficient number, since it is larger than the sum of its proper divisors (31801).

45075431 is a wasteful number, since it uses less digits than its factorization.

45075431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31800.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 45075431 is about 6713.8238731739. The cubic root of 45075431 is about 355.8879602610.

The spelling of 45075431 in words is "forty-five million, seventy-five thousand, four hundred thirty-one".