605142090 has 80 divisors (see below), whose sum is σ = 1859628672. Its totient is φ = 138316896.

The previous prime is 605142079. The next prime is 605142091. The reversal of 605142090 is 90241506.

605142090 is a `hidden beast` number, since 60 + 514 + 2 + 0 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (605142091) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47694 + ... + 59033.

Almost surely, 2^605142090 is an apocalyptic number.

605142090 is an abundant number, since it is smaller than the sum of its proper divisors (1254486582).

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

605142090 is a wasteful number, since it uses less digits than its factorization.

605142090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106753 (or 106744 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 605142090 is about 24599.6359729163. The cubic root of 605142090 is about 845.8352629290.

Adding to 605142090 its reverse (90241506), we get a palindrome (695383596).

The spelling of 605142090 in words is "six hundred five million, one hundred forty-two thousand, ninety".