421153307 has 4 divisors (see below), whose sum is σ = 422360400. Its totient is φ = 419946216.

The previous prime is 421153273. The next prime is 421153331. The reversal of 421153307 is 703351124.

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

It is a cyclic number.

It is not a de Polignac number, because 421153307 - 2¹⁰ = 421152283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421153367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603023 + ... + 603720.

It is an arithmetic number, because the mean of its divisors is an integer number (105590100).

Almost surely, 2^421153307 is an apocalyptic number.

421153307 is a deficient number, since it is larger than the sum of its proper divisors (1207093).

421153307 is a wasteful number, since it uses less digits than its factorization.

421153307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207092.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 421153307 is about 20522.0200516421. The cubic root of 421153307 is about 749.5720859733.

The spelling of 421153307 in words is "four hundred twenty-one million, one hundred fifty-three thousand, three hundred seven".