120071531 has 4 divisors (see below), whose sum is σ = 120217200. Its totient is φ = 119925864.

The previous prime is 120071519. The next prime is 120071533. The reversal of 120071531 is 135170021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120071531 - 2²² = 115877227 is a prime.

It is a super-2 number, since 2×120071531² = 28834345113367922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120071533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71591 + ... + 73248.

It is an arithmetic number, because the mean of its divisors is an integer number (30054300).

Almost surely, 2^120071531 is an apocalyptic number.

120071531 is a deficient number, since it is larger than the sum of its proper divisors (145669).

120071531 is an equidigital number, since it uses as much as digits as its factorization.

120071531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145668.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 120071531 is about 10957.7155922209. The cubic root of 120071531 is about 493.3404012968.

The spelling of 120071531 in words is "one hundred twenty million, seventy-one thousand, five hundred thirty-one".