45200919 has 4 divisors (see below), whose sum is σ = 60267896. Its totient is φ = 30133944.

The previous prime is 45200899. The next prime is 45200923. The reversal of 45200919 is 91900254.

It is a happy number.

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

It is not a de Polignac number, because 45200919 - 2⁸ = 45200663 is a prime.

It is a super-2 number, since 2×45200919² = 4086246156889122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45200929) 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, 7533484 + ... + 7533489.

It is an arithmetic number, because the mean of its divisors is an integer number (15066974).

Almost surely, 2^45200919 is an apocalyptic number.

45200919 is a deficient number, since it is larger than the sum of its proper divisors (15066977).

45200919 is a wasteful number, since it uses less digits than its factorization.

45200919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15066976.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 45200919 is about 6723.1628717442. The cubic root of 45200919 is about 356.2179130226.

The spelling of 45200919 in words is "forty-five million, two hundred thousand, nine hundred nineteen".