536146421 has 4 divisors (see below), whose sum is σ = 536479200. Its totient is φ = 535813644.

The previous prime is 536146411. The next prime is 536146433. The reversal of 536146421 is 124641635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124641635 = 5 ⋅24928327.

It is a cyclic number.

It is not a de Polignac number, because 536146421 - 2¹⁸ = 535884277 is a prime.

It is a super-2 number, since 2×536146421² = 574905969502218482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536146411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163961 + ... + 167198.

It is an arithmetic number, because the mean of its divisors is an integer number (134119800).

Almost surely, 2^536146421 is an apocalyptic number.

It is an amenable number.

536146421 is a deficient number, since it is larger than the sum of its proper divisors (332779).

536146421 is a wasteful number, since it uses less digits than its factorization.

536146421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332778.

The product of its digits is 17280, while the sum is 32.

The square root of 536146421 is about 23154.8358016204. The cubic root of 536146421 is about 812.3835805109.

It can be divided in two parts, 536 and 146421, that multiplied together give a triangular number (78481656 = T₁₂₅₂₈).

The spelling of 536146421 in words is "five hundred thirty-six million, one hundred forty-six thousand, four hundred twenty-one".