1980951 has 8 divisors (see below), whose sum is σ = 3018624. Its totient is φ = 1131960.

The previous prime is 1980949. The next prime is 1980983. The reversal of 1980951 is 1590891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1980951 - 2¹ = 1980949 is a prime.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980911) 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, 47145 + ... + 47186.

It is an arithmetic number, because the mean of its divisors is an integer number (377328).

2^1980951 is an apocalyptic number.

1980951 is a deficient number, since it is larger than the sum of its proper divisors (1037673).

1980951 is an equidigital number, since it uses as much as digits as its factorization.

1980951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94341.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1980951 is about 1407.4626105158. The cubic root of 1980951 is about 125.5908243463.

The spelling of 1980951 in words is "one million, nine hundred eighty thousand, nine hundred fifty-one".