618954059 has 4 divisors (see below), whose sum is σ = 620970504. Its totient is φ = 616937616.

The previous prime is 618954053. The next prime is 618954101. The reversal of 618954059 is 950459816.

It is a happy number.

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-618954059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618954053) 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, 1007762 + ... + 1008375.

It is an arithmetic number, because the mean of its divisors is an integer number (155242626).

Almost surely, 2^618954059 is an apocalyptic number.

618954059 is a deficient number, since it is larger than the sum of its proper divisors (2016445).

618954059 is a wasteful number, since it uses less digits than its factorization.

618954059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016444.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 618954059 is about 24878.7873297715. The cubic root of 618954059 is about 852.2221252750. Note that the first 3 decimals are identical.

The spelling of 618954059 in words is "six hundred eighteen million, nine hundred fifty-four thousand, fifty-nine".