45381559 has 4 divisors (see below), whose sum is σ = 45571680. Its totient is φ = 45191440.

The previous prime is 45381529. The next prime is 45381569. The reversal of 45381559 is 95518354.

45381559 = 37² + 38² + ... + 514².

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-45381559 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 (45381509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94702 + ... + 95179.

It is an arithmetic number, because the mean of its divisors is an integer number (11392920).

Almost surely, 2^45381559 is an apocalyptic number.

45381559 is a deficient number, since it is larger than the sum of its proper divisors (190121).

45381559 is a wasteful number, since it uses less digits than its factorization.

45381559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190120.

The product of its digits is 108000, while the sum is 40.

The square root of 45381559 is about 6736.5836297043. The cubic root of 45381559 is about 356.6918095454.

The spelling of 45381559 in words is "forty-five million, three hundred eighty-one thousand, five hundred fifty-nine".