618941149 has 8 divisors (see below), whose sum is σ = 621962168. Its totient is φ = 615928320.

The previous prime is 618941123. The next prime is 618941159. The reversal of 618941149 is 941149816.

618941149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 128097124 + 490844025 = 11318^2 + 22155^2 .

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 618941149 - 2²³ = 610552541 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 (618941119) 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, 190789 + ... + 194005.

It is an arithmetic number, because the mean of its divisors is an integer number (77745271).

Almost surely, 2^618941149 is an apocalyptic number.

It is an amenable number.

618941149 is a deficient number, since it is larger than the sum of its proper divisors (3021019).

618941149 is a wasteful number, since it uses less digits than its factorization.

618941149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095.

The product of its digits is 62208, while the sum is 43.

The square root of 618941149 is about 24878.5278704348. The cubic root of 618941149 is about 852.2162000834.

The spelling of 618941149 in words is "six hundred eighteen million, nine hundred forty-one thousand, one hundred forty-nine".