421101049 has 2 divisors, whose sum is σ = 421101050. Its totient is φ = 421101048.

The previous prime is 421101041. The next prime is 421101073. The reversal of 421101049 is 940101124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 368640000 + 52461049 = 19200^2 + 7243^2 .

It is a cyclic number.

It is not a de Polignac number, because 421101049 - 2³ = 421101041 is a prime.

It is not a weakly prime, because it can be changed into another prime (421101041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210550524 + 210550525.

It is an arithmetic number, because the mean of its divisors is an integer number (210550525).

Almost surely, 2^421101049 is an apocalyptic number.

It is an amenable number.

421101049 is a deficient number, since it is larger than the sum of its proper divisors (1).

421101049 is an equidigital number, since it uses as much as digits as its factorization.

421101049 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 22.

The square root of 421101049 is about 20520.7467944030. The cubic root of 421101049 is about 749.5410816195.

The spelling of 421101049 in words is "four hundred twenty-one million, one hundred one thousand, forty-nine".