61210240127 has 4 divisors (see below), whose sum is σ = 61212058320. Its totient is φ = 61208421936.

The previous prime is 61210240111. The next prime is 61210240183. The reversal of 61210240127 is 72104201216.

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 61210240127 - 2⁴ = 61210240111 is a prime.

It is a super-2 number, since 2×61210240127² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61210240096 and 61210240105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61210260127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857627 + ... + 926252.

It is an arithmetic number, because the mean of its divisors is an integer number (15303014580).

Almost surely, 2^61210240127 is an apocalyptic number.

61210240127 is a deficient number, since it is larger than the sum of its proper divisors (1818193).

61210240127 is a wasteful number, since it uses less digits than its factorization.

61210240127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818192.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 61210240127 in words is "sixty-one billion, two hundred ten million, two hundred forty thousand, one hundred twenty-seven".