420587131 has 8 divisors (see below), whose sum is σ = 446069664. Its totient is φ = 395704320.

The previous prime is 420587119. The next prime is 420587183. The reversal of 420587131 is 131785024.

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

It is a cyclic number.

It is not a de Polignac number, because 420587131 - 2¹⁷ = 420456059 is a prime.

It is a super-2 number, since 2×420587131² = 353787069525622322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420587093 and 420587102.

It is not an unprimeable number, because it can be changed into a prime (420587731) 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, 148486 + ... + 151291.

It is an arithmetic number, because the mean of its divisors is an integer number (55758708).

Almost surely, 2^420587131 is an apocalyptic number.

420587131 is a deficient number, since it is larger than the sum of its proper divisors (25482533).

420587131 is a wasteful number, since it uses less digits than its factorization.

420587131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299861.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 420587131 is about 20508.2210588827. The cubic root of 420587131 is about 749.2360404557.

The spelling of 420587131 in words is "four hundred twenty million, five hundred eighty-seven thousand, one hundred thirty-one".