421751141 has 8 divisors (see below), whose sum is σ = 485072640. Its totient is φ = 359197488.

The previous prime is 421751117. The next prime is 421751173. The reversal of 421751141 is 141157124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421751141 - 2¹⁰ = 421750117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421751141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421751101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190781 + ... + 192978.

It is an arithmetic number, because the mean of its divisors is an integer number (60634080).

Almost surely, 2^421751141 is an apocalyptic number.

It is an amenable number.

421751141 is a deficient number, since it is larger than the sum of its proper divisors (63321499).

421751141 is a wasteful number, since it uses less digits than its factorization.

421751141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383923.

The product of its digits is 1120, while the sum is 26.

The square root of 421751141 is about 20536.5805576294. The cubic root of 421751141 is about 749.9265948899.

The spelling of 421751141 in words is "four hundred twenty-one million, seven hundred fifty-one thousand, one hundred forty-one".