421251513 has 8 divisors (see below), whose sum is σ = 561763488. Its totient is φ = 280786944.

The previous prime is 421251497. The next prime is 421251533. The reversal of 421251513 is 315152124.

It is a happy number.

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

It is not a de Polignac number, because 421251513 - 2⁴ = 421251497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421251533) 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, 29370 + ... + 41292.

It is an arithmetic number, because the mean of its divisors is an integer number (70220436).

Almost surely, 2^421251513 is an apocalyptic number.

It is an amenable number.

421251513 is a deficient number, since it is larger than the sum of its proper divisors (140511975).

421251513 is a wasteful number, since it uses less digits than its factorization.

421251513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23703.

The product of its digits is 1200, while the sum is 24.

The square root of 421251513 is about 20524.4126103526. The cubic root of 421251513 is about 749.6303440581.

The spelling of 421251513 in words is "four hundred twenty-one million, two hundred fifty-one thousand, five hundred thirteen".