1167421 has 2 divisors, whose sum is σ = 1167422. Its totient is φ = 1167420.

The previous prime is 1167409. The next prime is 1167443. The reversal of 1167421 is 1247611.

It is an a-pointer prime, because the next prime (1167443) can be obtained adding 1167421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931225 + 236196 = 965^2 + 486^2 .

It is an emirp because it is prime and its reverse (1247611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1167421 - 2⁷ = 1167293 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1167392 and 1167401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1167821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583710 + 583711.

It is an arithmetic number, because the mean of its divisors is an integer number (583711).

2^1167421 is an apocalyptic number.

It is an amenable number.

1167421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167421 is an equidigital number, since it uses as much as digits as its factorization.

1167421 is an evil number, because the sum of its binary digits is even.

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

The square root of 1167421 is about 1080.4725817900. The cubic root of 1167421 is about 105.2953438374.

The spelling of 1167421 in words is "one million, one hundred sixty-seven thousand, four hundred twenty-one".