61082421 has 8 divisors (see below), whose sum is σ = 81931584. Its totient is φ = 40477440.

The previous prime is 61082407. The next prime is 61082423. The reversal of 61082421 is 12428016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61082421 - 2⁵ = 61082389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61082391 and 61082400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61082423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60460 + ... + 61461.

It is an arithmetic number, because the mean of its divisors is an integer number (10241448).

Almost surely, 2^61082421 is an apocalyptic number.

It is an amenable number.

61082421 is a deficient number, since it is larger than the sum of its proper divisors (20849163).

61082421 is a wasteful number, since it uses less digits than its factorization.

61082421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122091.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 61082421 is about 7815.5243586083. The cubic root of 61082421 is about 393.8269336192.

The spelling of 61082421 in words is "sixty-one million, eighty-two thousand, four hundred twenty-one".