61421132 has 18 divisors (see below), whose sum is σ = 112367388. Its totient is φ = 29374312.

The previous prime is 61421123. The next prime is 61421179. The reversal of 61421132 is 23112416.

61421132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61421132² = 7545110912322848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12398 + ... + 16629.

Almost surely, 2^61421132 is an apocalyptic number.

It is an amenable number.

61421132 is a deficient number, since it is larger than the sum of its proper divisors (50946256).

61421132 is a wasteful number, since it uses less digits than its factorization.

61421132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29077 (or 29052 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 61421132 is about 7837.1635174979. The cubic root of 61421132 is about 394.5535349714.

Adding to 61421132 its reverse (23112416), we get a palindrome (84533548).

The spelling of 61421132 in words is "sixty-one million, four hundred twenty-one thousand, one hundred thirty-two".