61425123 has 4 divisors (see below), whose sum is σ = 81900168. Its totient is φ = 40950080.

The previous prime is 61425121. The next prime is 61425173. The reversal of 61425123 is 32152416.

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 61425123 - 2¹ = 61425121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61425093 and 61425102.

It is not an unprimeable number, because it can be changed into a prime (61425121) 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, 10237518 + ... + 10237523.

It is an arithmetic number, because the mean of its divisors is an integer number (20475042).

Almost surely, 2^61425123 is an apocalyptic number.

61425123 is a deficient number, since it is larger than the sum of its proper divisors (20475045).

61425123 is a wasteful number, since it uses less digits than its factorization.

61425123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20475044.

The product of its digits is 1440, while the sum is 24.

The square root of 61425123 is about 7837.4181335437. The cubic root of 61425123 is about 394.5620805051.

Adding to 61425123 its reverse (32152416), we get a palindrome (93577539).

The spelling of 61425123 in words is "sixty-one million, four hundred twenty-five thousand, one hundred twenty-three".