421158361 has 4 divisors (see below), whose sum is σ = 453555172. Its totient is φ = 388761552.

The previous prime is 421158349. The next prime is 421158371. The reversal of 421158361 is 163851124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160174336 + 260984025 = 12656^2 + 16155^2 .

It is a cyclic number.

It is not a de Polignac number, because 421158361 - 2¹¹ = 421156313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421158301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16198386 + ... + 16198411.

It is an arithmetic number, because the mean of its divisors is an integer number (113388793).

Almost surely, 2^421158361 is an apocalyptic number.

It is an amenable number.

421158361 is a deficient number, since it is larger than the sum of its proper divisors (32396811).

421158361 is a wasteful number, since it uses less digits than its factorization.

421158361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32396810.

The product of its digits is 5760, while the sum is 31.

The square root of 421158361 is about 20522.1431872989. The cubic root of 421158361 is about 749.5750843447.

The spelling of 421158361 in words is "four hundred twenty-one million, one hundred fifty-eight thousand, three hundred sixty-one".