421535061 has 24 divisors (see below), whose sum is σ = 617437080. Its totient is φ = 277094400.

The previous prime is 421535047. The next prime is 421535089. The reversal of 421535061 is 160535124.

421535061 is a `hidden beast` number, since 4 + 2 + 153 + 506 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47692836 + 373842225 = 6906^2 + 19335^2 .

It is not a de Polignac number, because 421535061 - 2⁵ = 421535029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421535021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513031 + ... + 513851.

It is an arithmetic number, because the mean of its divisors is an integer number (25726545).

Almost surely, 2^421535061 is an apocalyptic number.

It is an amenable number.

421535061 is a deficient number, since it is larger than the sum of its proper divisors (195902019).

421535061 is a wasteful number, since it uses less digits than its factorization.

421535061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 421535061 is about 20531.3190272812. The cubic root of 421535061 is about 749.7985005355.

The spelling of 421535061 in words is "four hundred twenty-one million, five hundred thirty-five thousand, sixty-one".