420312145 has 8 divisors (see below), whose sum is σ = 550226880. Its totient is φ = 305681520.

The previous prime is 420312133. The next prime is 420312149. The reversal of 420312145 is 541213024.

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

It is not a de Polignac number, because 420312145 - 2⁷ = 420312017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420312149) 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 7 ways as a sum of consecutive naturals, for example, 3820965 + ... + 3821074.

It is an arithmetic number, because the mean of its divisors is an integer number (68778360).

Almost surely, 2^420312145 is an apocalyptic number.

It is an amenable number.

420312145 is a deficient number, since it is larger than the sum of its proper divisors (129914735).

420312145 is a wasteful number, since it uses less digits than its factorization.

420312145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642055.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420312145 is about 20501.5156756763. The cubic root of 420312145 is about 749.0727177063.

Adding to 420312145 its reverse (541213024), we get a palindrome (961525169).

The spelling of 420312145 in words is "four hundred twenty million, three hundred twelve thousand, one hundred forty-five".