421412137 has 16 divisors (see below), whose sum is σ = 445447440. Its totient is φ = 398103552.

The previous prime is 421412087. The next prime is 421412221. The reversal of 421412137 is 731214124.

It can be written as a sum of positive squares in 8 ways, for example, as 65108761 + 356303376 = 8069^2 + 18876^2 .

It is a cyclic number.

It is not a de Polignac number, because 421412137 - 2⁷ = 421412009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421412437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289303 + ... + 290755.

It is an arithmetic number, because the mean of its divisors is an integer number (27840465).

Almost surely, 2^421412137 is an apocalyptic number.

It is an amenable number.

421412137 is a deficient number, since it is larger than the sum of its proper divisors (24035303).

421412137 is a wasteful number, since it uses less digits than its factorization.

421412137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its digits is 1344, while the sum is 25.

The square root of 421412137 is about 20528.3252361219. The cubic root of 421412137 is about 749.7256104409.

The spelling of 421412137 in words is "four hundred twenty-one million, four hundred twelve thousand, one hundred thirty-seven".