45019801 has 4 divisors (see below), whose sum is σ = 45034704. Its totient is φ = 45004900.

The previous prime is 45019789. The next prime is 45019811. The reversal of 45019801 is 10891054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10891054 = 2 ⋅5445527.

It is a cyclic number.

It is not a de Polignac number, because 45019801 - 2⁷ = 45019673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45019801.

It is not an unprimeable number, because it can be changed into a prime (45019811) 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, 1135 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (11258676).

Almost surely, 2^45019801 is an apocalyptic number.

It is an amenable number.

45019801 is a deficient number, since it is larger than the sum of its proper divisors (14903).

45019801 is a wasteful number, since it uses less digits than its factorization.

45019801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 45019801 is about 6709.6796495809. The cubic root of 45019801 is about 355.7414932020.

The spelling of 45019801 in words is "forty-five million, nineteen thousand, eight hundred one".