45112019 has 4 divisors (see below), whose sum is σ = 45214296. Its totient is φ = 45009744.

The previous prime is 45112009. The next prime is 45112069. The reversal of 45112019 is 91021154.

It is a happy number.

45112019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 45112019 - 2²⁰ = 44063443 is a prime.

It is a super-2 number, since 2×45112019² = 4070188516512722, 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 = 45111985 and 45112003.

It is not an unprimeable number, because it can be changed into a prime (45112009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50474 + ... + 51359.

It is an arithmetic number, because the mean of its divisors is an integer number (11303574).

Almost surely, 2^45112019 is an apocalyptic number.

45112019 is a deficient number, since it is larger than the sum of its proper divisors (102277).

45112019 is a wasteful number, since it uses less digits than its factorization.

45112019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102276.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 45112019 is about 6716.5481461834. The cubic root of 45112019 is about 355.9842263558.

The spelling of 45112019 in words is "forty-five million, one hundred twelve thousand, nineteen".