1471981 has 4 divisors (see below), whose sum is σ = 1682272. Its totient is φ = 1261692.

The previous prime is 1471937. The next prime is 1472017. The reversal of 1471981 is 1891741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1891741 = 653 ⋅2897.

It is a cyclic number.

It is not a de Polignac number, because 1471981 - 2⁷ = 1471853 is a prime.

It is a super-2 number, since 2×1471981² = 4333456128722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1471181) 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, 105135 + ... + 105148.

It is an arithmetic number, because the mean of its divisors is an integer number (420568).

2^1471981 is an apocalyptic number.

It is an amenable number.

1471981 is a deficient number, since it is larger than the sum of its proper divisors (210291).

1471981 is an equidigital number, since it uses as much as digits as its factorization.

1471981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210290.

The product of its digits is 2016, while the sum is 31.

The square root of 1471981 is about 1213.2522408799. The cubic root of 1471981 is about 113.7541897583.

The spelling of 1471981 in words is "one million, four hundred seventy-one thousand, nine hundred eighty-one".