1481656143 has 16 divisors (see below), whose sum is σ = 2163534336. Its totient is φ = 894474240.

The previous prime is 1481656123. The next prime is 1481656151. The reversal of 1481656143 is 3416561841.

It is not a de Polignac number, because 1481656143 - 2²¹ = 1479558991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481656123) 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, 78871 + ... + 95832.

It is an arithmetic number, because the mean of its divisors is an integer number (135220896).

Almost surely, 2^1481656143 is an apocalyptic number.

1481656143 is a deficient number, since it is larger than the sum of its proper divisors (681878193).

1481656143 is a wasteful number, since it uses less digits than its factorization.

1481656143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174974.

The product of its digits is 69120, while the sum is 39.

The square root of 1481656143 is about 38492.2867987861. The cubic root of 1481656143 is about 1140.0287627400.

The spelling of 1481656143 in words is "one billion, four hundred eighty-one million, six hundred fifty-six thousand, one hundred forty-three".