120612135 has 16 divisors (see below), whose sum is σ = 220548096. Its totient is φ = 55136928.

The previous prime is 120612101. The next prime is 120612143. The reversal of 120612135 is 531216021.

It is not a de Polignac number, because 120612135 - 2⁶ = 120612071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574239 + ... + 574448.

It is an arithmetic number, because the mean of its divisors is an integer number (13784256).

Almost surely, 2^120612135 is an apocalyptic number.

120612135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120612135 is a deficient number, since it is larger than the sum of its proper divisors (99935961).

120612135 is a wasteful number, since it uses less digits than its factorization.

120612135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148702.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 120612135 is about 10982.3556216324. The cubic root of 120612135 is about 494.0796898656.

Adding to 120612135 its reverse (531216021), we get a palindrome (651828156).

It can be divided in two parts, 12061 and 2135, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 120612135 in words is "one hundred twenty million, six hundred twelve thousand, one hundred thirty-five".