421110149 has 2 divisors, whose sum is σ = 421110150. Its totient is φ = 421110148.

The previous prime is 421110143. The next prime is 421110181. The reversal of 421110149 is 941011124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314814049 + 106296100 = 17743^2 + 10310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421110149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421110143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210555074 + 210555075.

It is an arithmetic number, because the mean of its divisors is an integer number (210555075).

Almost surely, 2^421110149 is an apocalyptic number.

It is an amenable number.

421110149 is a deficient number, since it is larger than the sum of its proper divisors (1).

421110149 is an equidigital number, since it uses as much as digits as its factorization.

421110149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 421110149 is about 20520.9685200285. The cubic root of 421110149 is about 749.5464807787.

The spelling of 421110149 in words is "four hundred twenty-one million, one hundred ten thousand, one hundred forty-nine".