45290019 has 4 divisors (see below), whose sum is σ = 60386696. Its totient is φ = 30193344.

The previous prime is 45289991. The next prime is 45290041. The reversal of 45290019 is 91009254.

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 45290019 - 2⁸ = 45289763 is a prime.

It is a super-2 number, since 2×45290019² = 4102371642040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45290099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7548334 + ... + 7548339.

It is an arithmetic number, because the mean of its divisors is an integer number (15096674).

Almost surely, 2^45290019 is an apocalyptic number.

45290019 is a deficient number, since it is larger than the sum of its proper divisors (15096677).

45290019 is a wasteful number, since it uses less digits than its factorization.

45290019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15096676.

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

The square root of 45290019 is about 6729.7859549914. The cubic root of 45290019 is about 356.4518181801.

The spelling of 45290019 in words is "forty-five million, two hundred ninety thousand, nineteen".