120140655 has 32 divisors (see below), whose sum is σ = 200724480. Its totient is φ = 61290240.

The previous prime is 120140653. The next prime is 120140663. The reversal of 120140655 is 556041021.

It is not a de Polignac number, because 120140655 - 2¹ = 120140653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120140651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39934 + ... + 42836.

It is an arithmetic number, because the mean of its divisors is an integer number (6272640).

Almost surely, 2^120140655 is an apocalyptic number.

120140655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120140655 is a deficient number, since it is larger than the sum of its proper divisors (80583825).

120140655 is a wasteful number, since it uses less digits than its factorization.

120140655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 120140655 is about 10960.8692629736. The cubic root of 120140655 is about 493.4350535420.

Adding to 120140655 its reverse (556041021), we get a palindrome (676181676).

The spelling of 120140655 in words is "one hundred twenty million, one hundred forty thousand, six hundred fifty-five".