420016151 has 4 divisors (see below), whose sum is σ = 420571752. Its totient is φ = 419460552.

The previous prime is 420016139. The next prime is 420016169. The reversal of 420016151 is 151610024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420016151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420016351) 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, 276665 + ... + 278178.

It is an arithmetic number, because the mean of its divisors is an integer number (105142938).

Almost surely, 2^420016151 is an apocalyptic number.

420016151 is a deficient number, since it is larger than the sum of its proper divisors (555601).

420016151 is an equidigital number, since it uses as much as digits as its factorization.

420016151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555600.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 420016151 is about 20494.2955721830. The cubic root of 420016151 is about 748.8968380256.

Adding to 420016151 its reverse (151610024), we get a palindrome (571626175).

The spelling of 420016151 in words is "four hundred twenty million, sixteen thousand, one hundred fifty-one".