120613531 has 8 divisors (see below), whose sum is σ = 124907184. Its totient is φ = 116394720.

The previous prime is 120613517. The next prime is 120613543. The reversal of 120613531 is 135316021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120613531 - 2¹⁵ = 120580763 is a prime.

It is a super-2 number, since 2×120613531² = 29095247720575922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120613561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15421 + ... + 21886.

It is an arithmetic number, because the mean of its divisors is an integer number (15613398).

Almost surely, 2^120613531 is an apocalyptic number.

120613531 is a deficient number, since it is larger than the sum of its proper divisors (4293653).

120613531 is an equidigital number, since it uses as much as digits as its factorization.

120613531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37421.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 120613531 is about 10982.4191779407. The cubic root of 120613531 is about 494.0815960656.

Adding to 120613531 its reverse (135316021), we get a palindrome (255929552).

The spelling of 120613531 in words is "one hundred twenty million, six hundred thirteen thousand, five hundred thirty-one".