167344421 has 2 divisors, whose sum is σ = 167344422. Its totient is φ = 167344420.

The previous prime is 167344403. The next prime is 167344531. The reversal of 167344421 is 124443761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121308196 + 46036225 = 11014^2 + 6785^2 .

It is a cyclic number.

It is not a de Polignac number, because 167344421 - 2²⁶ = 100235557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167304421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83672210 + 83672211.

It is an arithmetic number, because the mean of its divisors is an integer number (83672211).

Almost surely, 2^167344421 is an apocalyptic number.

It is an amenable number.

167344421 is a deficient number, since it is larger than the sum of its proper divisors (1).

167344421 is an equidigital number, since it uses as much as digits as its factorization.

167344421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 167344421 is about 12936.1671680603. The cubic root of 167344421 is about 551.0661644322.

It can be divided in two parts, 16 and 7344421, that added together give a palindrome (7344437).

The spelling of 167344421 in words is "one hundred sixty-seven million, three hundred forty-four thousand, four hundred twenty-one".