45190087 has 4 divisors (see below), whose sum is σ = 45213336. Its totient is φ = 45166840.

The previous prime is 45190049. The next prime is 45190099. The reversal of 45190087 is 78009154.

It is a happy number.

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-45190087 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 (45190007) 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, 8413 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (11303334).

Almost surely, 2^45190087 is an apocalyptic number.

45190087 is a deficient number, since it is larger than the sum of its proper divisors (23249).

45190087 is a wasteful number, since it uses less digits than its factorization.

45190087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23248.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 45190087 is about 6722.3572502508. The cubic root of 45190087 is about 356.1894559265.

The spelling of 45190087 in words is "forty-five million, one hundred ninety thousand, eighty-seven".