2155419594 has 12 divisors (see below), whose sum is σ = 4670075826. Its totient is φ = 718473192.

The previous prime is 2155419589. The next prime is 2155419599. The reversal of 2155419594 is 4959145512.

2155419594 is a `hidden beast` number, since 2 + 1 + 5 + 54 + 1 + 9 + 594 = 666.

It is an interprime number because it is at equal distance from previous prime (2155419589) and next prime (2155419599).

It can be written as a sum of positive squares in only one way, i.e., 1646330625 + 509088969 = 40575^2 + 22563^2 .

It is not an unprimeable number, because it can be changed into a prime (2155419599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59872749 + ... + 59872784.

Almost surely, 2^2155419594 is an apocalyptic number.

2155419594 is an abundant number, since it is smaller than the sum of its proper divisors (2514656232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155419594 is a wasteful number, since it uses less digits than its factorization.

2155419594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119745541 (or 119745538 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 2155419594 is about 46426.4966802364. The cubic root of 2155419594 is about 1291.7464465039.

The spelling of 2155419594 in words is "two billion, one hundred fifty-five million, four hundred nineteen thousand, five hundred ninety-four".