532123421 has 4 divisors (see below), whose sum is σ = 534331644. Its totient is φ = 529915200.

The previous prime is 532123411. The next prime is 532123451. The reversal of 532123421 is 124321235.

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

It can be written as a sum of positive squares in 2 ways, for example, as 181872196 + 350251225 = 13486^2 + 18715^2 .

It is a cyclic number.

It is not a de Polignac number, because 532123421 - 2⁶ = 532123357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532123411) 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, 1103750 + ... + 1104231.

It is an arithmetic number, because the mean of its divisors is an integer number (133582911).

Almost surely, 2^532123421 is an apocalyptic number.

It is an amenable number.

532123421 is a deficient number, since it is larger than the sum of its proper divisors (2208223).

532123421 is a wasteful number, since it uses less digits than its factorization.

532123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208222.

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

The square root of 532123421 is about 23067.8005236737. The cubic root of 532123421 is about 810.3465574914.

Adding to 532123421 its reverse (124321235), we get a palindrome (656444656).

The spelling of 532123421 in words is "five hundred thirty-two million, one hundred twenty-three thousand, four hundred twenty-one".