61900319 has 4 divisors (see below), whose sum is σ = 66661896. Its totient is φ = 57138744.

The previous prime is 61900261. The next prime is 61900327. The reversal of 61900319 is 91300916.

61900319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61900319 - 2⁸ = 61900063 is a prime.

It is a super-2 number, since 2×61900319² = 7663298984603522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61900291 and 61900300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61900339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2380769 + ... + 2380794.

It is an arithmetic number, because the mean of its divisors is an integer number (16665474).

Almost surely, 2^61900319 is an apocalyptic number.

61900319 is a deficient number, since it is larger than the sum of its proper divisors (4761577).

61900319 is a wasteful number, since it uses less digits than its factorization.

61900319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761576.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 61900319 is about 7867.6755779582. The cubic root of 61900319 is about 395.5769361202.

The spelling of 61900319 in words is "sixty-one million, nine hundred thousand, three hundred nineteen".