1283951 has 4 divisors (see below), whose sum is σ = 1291992. Its totient is φ = 1275912.

The previous prime is 1283941. The next prime is 1283957. The reversal of 1283951 is 1593821.

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 1283951 - 2¹⁸ = 1021807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283957) 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, 3776 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (322998).

2^1283951 is an apocalyptic number.

1283951 is a deficient number, since it is larger than the sum of its proper divisors (8041).

1283951 is an equidigital number, since it uses as much as digits as its factorization.

1283951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040.

The product of its digits is 2160, while the sum is 29.

The square root of 1283951 is about 1133.1156163428. The cubic root of 1283951 is about 108.6883051660.

The spelling of 1283951 in words is "one million, two hundred eighty-three thousand, nine hundred fifty-one".