1421051 has 4 divisors (see below), whose sum is σ = 1423632. Its totient is φ = 1418472.

The previous prime is 1421041. The next prime is 1421083. The reversal of 1421051 is 1501241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1501241 = 7 ⋅214463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421011) 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, 95 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (355908).

2^1421051 is an apocalyptic number.

1421051 is a deficient number, since it is larger than the sum of its proper divisors (2581).

1421051 is an equidigital number, since it uses as much as digits as its factorization.

1421051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1421051 is about 1192.0784370166. The cubic root of 1421051 is about 112.4268100077.

Adding to 1421051 its reverse (1501241), we get a palindrome (2922292).

The spelling of 1421051 in words is "one million, four hundred twenty-one thousand, fifty-one".