61875031 has 4 divisors (see below), whose sum is σ = 62217064. Its totient is φ = 61533000.

The previous prime is 61875029. The next prime is 61875041. The reversal of 61875031 is 13057816.

61875031 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 a cyclic number.

It is not a de Polignac number, because 61875031 - 2¹ = 61875029 is a prime.

It is a super-2 number, since 2×61875031² = 7657038922501922, 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 = 61874984 and 61875002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61875041) 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, 170745 + ... + 171106.

It is an arithmetic number, because the mean of its divisors is an integer number (15554266).

Almost surely, 2^61875031 is an apocalyptic number.

61875031 is a deficient number, since it is larger than the sum of its proper divisors (342033).

61875031 is a wasteful number, since it uses less digits than its factorization.

61875031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342032.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 61875031 is about 7866.0683317652. The cubic root of 61875031 is about 395.5230607269.

The spelling of 61875031 in words is "sixty-one million, eight hundred seventy-five thousand, thirty-one".