61901193 has 8 divisors (see below), whose sum is σ = 82620000. Its totient is φ = 41224928.

The previous prime is 61901173. The next prime is 61901227. The reversal of 61901193 is 39110916.

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 61901193 - 2¹³ = 61893001 is a prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 61901193.

It is not an unprimeable number, because it can be changed into a prime (61901113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7068 + ... + 13181.

It is an arithmetic number, because the mean of its divisors is an integer number (10327500).

Almost surely, 2^61901193 is an apocalyptic number.

It is an amenable number.

61901193 is a deficient number, since it is larger than the sum of its proper divisors (20718807).

61901193 is a wasteful number, since it uses less digits than its factorization.

61901193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21271.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 61901193 is about 7867.7311214860. The cubic root of 61901193 is about 395.5787978909.

The spelling of 61901193 in words is "sixty-one million, nine hundred one thousand, one hundred ninety-three".