121610126 has 8 divisors (see below), whose sum is σ = 198998424. Its totient is φ = 55277320.

The previous prime is 121610123. The next prime is 121610147. The reversal of 121610126 is 621016121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121610098 and 121610107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121610123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763845 + ... + 2763888.

It is an arithmetic number, because the mean of its divisors is an integer number (24874803).

Almost surely, 2^121610126 is an apocalyptic number.

121610126 is a deficient number, since it is larger than the sum of its proper divisors (77388298).

121610126 is a wasteful number, since it uses less digits than its factorization.

121610126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527746.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 121610126 is about 11027.6981278960. The cubic root of 121610126 is about 495.4386833148.

Adding to 121610126 its reverse (621016121), we get a palindrome (742626247).

The spelling of 121610126 in words is "one hundred twenty-one million, six hundred ten thousand, one hundred twenty-six".