120306534 has 16 divisors (see below), whose sum is σ = 241097472. Its totient is φ = 40021448.

The previous prime is 120306523. The next prime is 120306547. The reversal of 120306534 is 435603021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16914 + ... + 22949.

It is an arithmetic number, because the mean of its divisors is an integer number (15068592).

Almost surely, 2^120306534 is an apocalyptic number.

120306534 is an abundant number, since it is smaller than the sum of its proper divisors (120790938).

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

120306534 is a wasteful number, since it uses less digits than its factorization.

120306534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40371.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 120306534 is about 10968.4335253490. The cubic root of 120306534 is about 493.6620454558.

Adding to 120306534 its reverse (435603021), we get a palindrome (555909555).

The spelling of 120306534 in words is "one hundred twenty million, three hundred six thousand, five hundred thirty-four".