61083021 has 8 divisors (see below), whose sum is σ = 82779424. Its totient is φ = 40054320.

The previous prime is 61082981. The next prime is 61083031. The reversal of 61083021 is 12038016.

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

It is not a de Polignac number, because 61083021 - 2⁹ = 61082509 is a prime.

It is a super-2 number, since 2×61083021² = 7462270908972882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61083031) 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, 166711 + ... + 167076.

It is an arithmetic number, because the mean of its divisors is an integer number (10347428).

Almost surely, 2^61083021 is an apocalyptic number.

61083021 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

61083021 is a deficient number, since it is larger than the sum of its proper divisors (21696403).

61083021 is a wasteful number, since it uses less digits than its factorization.

61083021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333851.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 61083021 is about 7815.5627436545. The cubic root of 61083021 is about 393.8282231086.

The spelling of 61083021 in words is "sixty-one million, eighty-three thousand, twenty-one".