421350513 has 4 divisors (see below), whose sum is σ = 561800688. Its totient is φ = 280900340.

The previous prime is 421350499. The next prime is 421350521. The reversal of 421350513 is 315053124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421350513 - 2⁴ = 421350497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421350533) 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, 70225083 + ... + 70225088.

It is an arithmetic number, because the mean of its divisors is an integer number (140450172).

Almost surely, 2^421350513 is an apocalyptic number.

It is an amenable number.

421350513 is a deficient number, since it is larger than the sum of its proper divisors (140450175).

421350513 is a wasteful number, since it uses less digits than its factorization.

421350513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140450174.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 421350513 is about 20526.8242307474. The cubic root of 421350513 is about 749.6890639984.

The spelling of 421350513 in words is "four hundred twenty-one million, three hundred fifty thousand, five hundred thirteen".