61939123 has 4 divisors (see below), whose sum is σ = 61974000. Its totient is φ = 61904248.

The previous prime is 61939121. The next prime is 61939127. The reversal of 61939123 is 32193916.

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 61939123 - 2¹ = 61939121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61939121) 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, 14623 + ... + 18376.

It is an arithmetic number, because the mean of its divisors is an integer number (15493500).

Almost surely, 2^61939123 is an apocalyptic number.

61939123 is a deficient number, since it is larger than the sum of its proper divisors (34877).

61939123 is a wasteful number, since it uses less digits than its factorization.

61939123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34876.

The product of its digits is 8748, while the sum is 34.

The square root of 61939123 is about 7870.1412312614. The cubic root of 61939123 is about 395.6595784569.

The spelling of 61939123 in words is "sixty-one million, nine hundred thirty-nine thousand, one hundred twenty-three".