61230191 has 8 divisors (see below), whose sum is σ = 66921984. Its totient is φ = 55559320.

The previous prime is 61230173. The next prime is 61230203. The reversal of 61230191 is 19103216.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61230191 - 2¹⁴ = 61213807 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 (61230791) 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, 1250 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (8365248).

Almost surely, 2^61230191 is an apocalyptic number.

61230191 is a deficient number, since it is larger than the sum of its proper divisors (5691793).

61230191 is a wasteful number, since it uses less digits than its factorization.

61230191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 61230191 is about 7824.9722683215. The cubic root of 61230191 is about 394.1442586319.

It can be divided in two parts, 612 and 30191, that added together give a palindrome (30803).

The spelling of 61230191 in words is "sixty-one million, two hundred thirty thousand, one hundred ninety-one".