185308542 has 12 divisors (see below), whose sum is σ = 401501880. Its totient is φ = 61769508.

The previous prime is 185308537. The next prime is 185308547. The reversal of 185308542 is 245803581.

It is a happy number.

185308542 is a `hidden beast` number, since 1 + 8 + 530 + 85 + 42 = 666.

185308542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (185308537) and next prime (185308547).

It is a junction number, because it is equal to n+sod(n) for n = 185308497 and 185308506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185308547) 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, 5147442 + ... + 5147477.

It is an arithmetic number, because the mean of its divisors is an integer number (33458490).

Almost surely, 2^185308542 is an apocalyptic number.

185308542 is an abundant number, since it is smaller than the sum of its proper divisors (216193338).

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

185308542 is a wasteful number, since it uses less digits than its factorization.

185308542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294927 (or 10294924 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 185308542 is about 13612.8080130442. The cubic root of 185308542 is about 570.1185164455.

It can be divided in two parts, 18530 and 8542, that added together give a palindrome (27072).

The spelling of 185308542 in words is "one hundred eighty-five million, three hundred eight thousand, five hundred forty-two".