420315134 has 4 divisors (see below), whose sum is σ = 630472704. Its totient is φ = 210157566.

The previous prime is 420315127. The next prime is 420315151. The reversal of 420315134 is 431513024.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105078782 + ... + 105078785.

It is an arithmetic number, because the mean of its divisors is an integer number (157618176).

Almost surely, 2^420315134 is an apocalyptic number.

420315134 is a deficient number, since it is larger than the sum of its proper divisors (210157570).

420315134 is a wasteful number, since it uses less digits than its factorization.

420315134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210157569.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 420315134 is about 20501.5885725960. The cubic root of 420315134 is about 749.0744933493.

Adding to 420315134 its reverse (431513024), we get a palindrome (851828158).

The spelling of 420315134 in words is "four hundred twenty million, three hundred fifteen thousand, one hundred thirty-four".