421545119 has 2 divisors, whose sum is σ = 421545120. Its totient is φ = 421545118.

The previous prime is 421545109. The next prime is 421545133. The reversal of 421545119 is 911545124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421545119 is a prime.

It is a super-2 number, since 2×421545119² = 355400574705448322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421545109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210772559 + 210772560.

It is an arithmetic number, because the mean of its divisors is an integer number (210772560).

Almost surely, 2^421545119 is an apocalyptic number.

421545119 is a deficient number, since it is larger than the sum of its proper divisors (1).

421545119 is an equidigital number, since it uses as much as digits as its factorization.

421545119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 421545119 is about 20531.5639686800. The cubic root of 421545119 is about 749.8044639883.

The spelling of 421545119 in words is "four hundred twenty-one million, five hundred forty-five thousand, one hundred nineteen".