61250123 has 4 divisors (see below), whose sum is σ = 66818328. Its totient is φ = 55681920.

The previous prime is 61250113. The next prime is 61250143. The reversal of 61250123 is 32105216.

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 61250123 - 2⁴ = 61250107 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61250095 and 61250104.

It is not an unprimeable number, because it can be changed into a prime (61250113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2784086 + ... + 2784107.

It is an arithmetic number, because the mean of its divisors is an integer number (16704582).

Almost surely, 2^61250123 is an apocalyptic number.

61250123 is a deficient number, since it is larger than the sum of its proper divisors (5568205).

61250123 is a wasteful number, since it uses less digits than its factorization.

61250123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568204.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 61250123 is about 7826.2457794271. The cubic root of 61250123 is about 394.1870220189.

Adding to 61250123 its reverse (32105216), we get a palindrome (93355339).

The spelling of 61250123 in words is "sixty-one million, two hundred fifty thousand, one hundred twenty-three".