1420531163 has 4 divisors (see below), whose sum is σ = 1439990568. Its totient is φ = 1401071760.

The previous prime is 1420531127. The next prime is 1420531183. The reversal of 1420531163 is 3611350241.

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 1420531163 - 2²⁴ = 1403753947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420531183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9729593 + ... + 9729738.

It is an arithmetic number, because the mean of its divisors is an integer number (359997642).

Almost surely, 2^1420531163 is an apocalyptic number.

1420531163 is a deficient number, since it is larger than the sum of its proper divisors (19459405).

1420531163 is an equidigital number, since it uses as much as digits as its factorization.

1420531163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459404.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1420531163 is about 37689.9345051169. The cubic root of 1420531163 is about 1124.1309932374.

The spelling of 1420531163 in words is "one billion, four hundred twenty million, five hundred thirty-one thousand, one hundred sixty-three".