61432 has 16 divisors (see below), whose sum is σ = 131760. Its totient is φ = 26304.

The previous prime is 61417. The next prime is 61441. The reversal of 61432 is 23416.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493 + ... + 604.

It is an arithmetic number, because the mean of its divisors is an integer number (8235).

2⁶¹⁴³² is an apocalyptic number.

It is an amenable number.

61432 is an abundant number, since it is smaller than the sum of its proper divisors (70328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65880).

61432 is a wasteful number, since it uses less digits than its factorization.

61432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1106 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 61432 is about 247.8547962013. The cubic root of 61432 is about 39.4576804677.

Subtracting from 61432 its sum of digits (16), we obtain a palindrome (61416).

Adding to 61432 its reverse (23416), we get a palindrome (84848).

It can be divided in two parts, 614 and 32, that added together give a palindrome (646).

The spelling of 61432 in words is "sixty-one thousand, four hundred thirty-two".