421141257 has 12 divisors (see below), whose sum is σ = 616883904. Its totient is φ = 276806040.

The previous prime is 421141243. The next prime is 421141283. The reversal of 421141257 is 752141124.

It is not a de Polignac number, because 421141257 - 2⁴ = 421141241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421141257.

It is not an unprimeable number, because it can be changed into a prime (421142257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328893 + ... + 330170.

It is an arithmetic number, because the mean of its divisors is an integer number (51406992).

Almost surely, 2^421141257 is an apocalyptic number.

It is an amenable number.

421141257 is a deficient number, since it is larger than the sum of its proper divisors (195742647).

421141257 is a wasteful number, since it uses less digits than its factorization.

421141257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659140 (or 659137 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 421141257 is about 20521.7264624592. The cubic root of 421141257 is about 749.5649370091.

The spelling of 421141257 in words is "four hundred twenty-one million, one hundred forty-one thousand, two hundred fifty-seven".