121387461 has 12 divisors (see below), whose sum is σ = 175258368. Its totient is φ = 74699664.

The previous prime is 121387459. The next prime is 121387471. The reversal of 121387461 is 164783121.

It is not a de Polignac number, because 121387461 - 2¹ = 121387459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121387411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119205 + ... + 120218.

It is an arithmetic number, because the mean of its divisors is an integer number (14604864).

Almost surely, 2^121387461 is an apocalyptic number.

It is an amenable number.

121387461 is a deficient number, since it is larger than the sum of its proper divisors (53870907).

121387461 is a wasteful number, since it uses less digits than its factorization.

121387461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239452 (or 239439 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 121387461 is about 11017.5977871767. The cubic root of 121387461 is about 495.1361200998.

The spelling of 121387461 in words is "one hundred twenty-one million, three hundred eighty-seven thousand, four hundred sixty-one".