545139901 has 8 divisors (see below), whose sum is σ = 578116224. Its totient is φ = 512264640.

The previous prime is 545139899. The next prime is 545139913. The reversal of 545139901 is 109931545.

It is a happy number.

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 545139901 - 2¹ = 545139899 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 (545139961) 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, 14005 + ... + 35866.

It is an arithmetic number, because the mean of its divisors is an integer number (72264528).

Almost surely, 2^545139901 is an apocalyptic number.

It is an amenable number.

545139901 is a deficient number, since it is larger than the sum of its proper divisors (32976323).

545139901 is a wasteful number, since it uses less digits than its factorization.

545139901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50531.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 545139901 is about 23348.2312178032. The cubic root of 545139901 is about 816.9008042997.

The spelling of 545139901 in words is "five hundred forty-five million, one hundred thirty-nine thousand, nine hundred one".