61208423 has 4 divisors (see below), whose sum is σ = 61379280. Its totient is φ = 61037568.

The previous prime is 61208417. The next prime is 61208431. The reversal of 61208423 is 32480216.

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 61208423 - 2²⁴ = 44431207 is a prime.

It is a super-2 number, since 2×61208423² = 7492942092293858, 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 = 61208392 and 61208401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61208023) 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, 84890 + ... + 85607.

It is an arithmetic number, because the mean of its divisors is an integer number (15344820).

Almost surely, 2^61208423 is an apocalyptic number.

61208423 is a deficient number, since it is larger than the sum of its proper divisors (170857).

61208423 is a wasteful number, since it uses less digits than its factorization.

61208423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170856.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 61208423 is about 7823.5812132297. The cubic root of 61208423 is about 394.0975455697.

Adding to 61208423 its reverse (32480216), we get a palindrome (93688639).

The spelling of 61208423 in words is "sixty-one million, two hundred eight thousand, four hundred twenty-three".