121246653 has 16 divisors (see below), whose sum is σ = 177281856. Its totient is φ = 73098240.

The previous prime is 121246637. The next prime is 121246679. The reversal of 121246653 is 356642121.

It is not a de Polignac number, because 121246653 - 2⁴ = 121246637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121246653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121246633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3150 + ... + 15887.

It is an arithmetic number, because the mean of its divisors is an integer number (11080116).

Almost surely, 2^121246653 is an apocalyptic number.

It is an amenable number.

121246653 is a deficient number, since it is larger than the sum of its proper divisors (56035203).

121246653 is a wasteful number, since it uses less digits than its factorization.

121246653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19244.

The product of its digits is 8640, while the sum is 30.

The square root of 121246653 is about 11011.2057922827. The cubic root of 121246653 is about 494.9445953701.

Adding to 121246653 its reverse (356642121), we get a palindrome (477888774).

The spelling of 121246653 in words is "one hundred twenty-one million, two hundred forty-six thousand, six hundred fifty-three".