61045123 has 4 divisors (see below), whose sum is σ = 61605280. Its totient is φ = 60484968.

The previous prime is 61045121. The next prime is 61045129. The reversal of 61045123 is 32154016.

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 61045123 - 2¹ = 61045121 is a prime.

It is a super-3 number, since 3×61045123³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61045094 and 61045103.

It is not an unprimeable number, because it can be changed into a prime (61045121) 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, 279915 + ... + 280132.

It is an arithmetic number, because the mean of its divisors is an integer number (15401320).

Almost surely, 2^61045123 is an apocalyptic number.

61045123 is a deficient number, since it is larger than the sum of its proper divisors (560157).

61045123 is a wasteful number, since it uses less digits than its factorization.

61045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560156.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 61045123 is about 7813.1378459618. The cubic root of 61045123 is about 393.7467580820.

Adding to 61045123 its reverse (32154016), we get a palindrome (93199139).

The spelling of 61045123 in words is "sixty-one million, forty-five thousand, one hundred twenty-three".