1421167 has 4 divisors (see below), whose sum is σ = 1550376. Its totient is φ = 1291960.

The previous prime is 1421159. The next prime is 1421191. The reversal of 1421167 is 7611241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7611241 = 11 ⋅691931.

It is a cyclic number.

It is not a de Polignac number, because 1421167 - 2³ = 1421159 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 (1421267) 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, 64588 + ... + 64609.

It is an arithmetic number, because the mean of its divisors is an integer number (387594).

2^1421167 is an apocalyptic number.

1421167 is a deficient number, since it is larger than the sum of its proper divisors (129209).

1421167 is a wasteful number, since it uses less digits than its factorization.

1421167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129208.

The product of its digits is 336, while the sum is 22.

The square root of 1421167 is about 1192.1270905403. The cubic root of 1421167 is about 112.4298690476.

The spelling of 1421167 in words is "one million, four hundred twenty-one thousand, one hundred sixty-seven".