545022391 has 8 divisors (see below), whose sum is σ = 578787120. Its totient is φ = 511765632.

The previous prime is 545022371. The next prime is 545022407. The reversal of 545022391 is 193220545.

545022391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545022391 - 2⁷ = 545022263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545022301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124780 + ... + 129073.

It is an arithmetic number, because the mean of its divisors is an integer number (72348390).

Almost surely, 2^545022391 is an apocalyptic number.

545022391 is a deficient number, since it is larger than the sum of its proper divisors (33764729).

545022391 is a wasteful number, since it uses less digits than its factorization.

545022391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253985.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 545022391 is about 23345.7146174625. The cubic root of 545022391 is about 816.8421032142.

The spelling of 545022391 in words is "five hundred forty-five million, twenty-two thousand, three hundred ninety-one".