120144531 has 16 divisors (see below), whose sum is σ = 172712960. Its totient is φ = 73850400.

The previous prime is 120144527. The next prime is 120144533. The reversal of 120144531 is 135441021.

It is not a de Polignac number, because 120144531 - 2² = 120144527 is a prime.

It is a super-2 number, since 2×120144531² = 28869416658419922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120144498 and 120144507.

It is not an unprimeable number, because it can be changed into a prime (120144533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60606 + ... + 62556.

It is an arithmetic number, because the mean of its divisors is an integer number (10794560).

Almost surely, 2^120144531 is an apocalyptic number.

120144531 is a deficient number, since it is larger than the sum of its proper divisors (52568429).

120144531 is a wasteful number, since it uses less digits than its factorization.

120144531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 120144531 is about 10961.0460723418. The cubic root of 120144531 is about 493.4403599159.

Adding to 120144531 its reverse (135441021), we get a palindrome (255585552).

The spelling of 120144531 in words is "one hundred twenty million, one hundred forty-four thousand, five hundred thirty-one".