1980467531 has 8 divisors (see below), whose sum is σ = 2266460160. Its totient is φ = 1695242088.

The previous prime is 1980467521. The next prime is 1980467537. The reversal of 1980467531 is 1357640891.

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 1980467531 - 2¹⁸ = 1980205387 is a prime.

It is a super-2 number, since 2×1980467531² = 7844503282690471922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1980467537) 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, 186251 + ... + 196596.

It is an arithmetic number, because the mean of its divisors is an integer number (283307520).

Almost surely, 2^1980467531 is an apocalyptic number.

1980467531 is a deficient number, since it is larger than the sum of its proper divisors (285992629).

1980467531 is an equidigital number, since it uses as much as digits as its factorization.

1980467531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383593.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1980467531 is about 44502.4441014199. Note that the first 3 decimals coincide. The cubic root of 1980467531 is about 1255.8060632293.

The spelling of 1980467531 in words is "one billion, nine hundred eighty million, four hundred sixty-seven thousand, five hundred thirty-one".