1982251 has 12 divisors (see below), whose sum is σ = 2222680. Its totient is φ = 1767456.

The previous prime is 1982219. The next prime is 1982263. The reversal of 1982251 is 1522891.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 1982251 - 2⁵ = 1982219 is a prime.

It is a Duffinian number.

Its product of digits (1440) is a multiple of the sum of its prime divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1982291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104320 + ... + 104338.

2^1982251 is an apocalyptic number.

1982251 is a deficient number, since it is larger than the sum of its proper divisors (240429).

1982251 is an frugal number, since it uses more digits than its factorization.

1982251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 36 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1982251 is about 1407.9243587636. The cubic root of 1982251 is about 125.6182913507.

The spelling of 1982251 in words is "one million, nine hundred eighty-two thousand, two hundred fifty-one".