45381951 has 12 divisors (see below), whose sum is σ = 67979912. Its totient is φ = 30254472.

The previous prime is 45381929. The next prime is 45381953. The reversal of 45381951 is 15918354.

It is not a de Polignac number, because 45381951 - 2¹¹ = 45379903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45381953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93136 + ... + 93621.

Almost surely, 2^45381951 is an apocalyptic number.

45381951 is a deficient number, since it is larger than the sum of its proper divisors (22597961).

45381951 is an equidigital number, since it uses as much as digits as its factorization.

45381951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186772 (or 186760 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 45381951 is about 6736.6127245078. The cubic root of 45381951 is about 356.6928365615.

The spelling of 45381951 in words is "forty-five million, three hundred eighty-one thousand, nine hundred fifty-one".