121851461 has 8 divisors (see below), whose sum is σ = 131207040. Its totient is φ = 112739008.

The previous prime is 121851439. The next prime is 121851463. The reversal of 121851461 is 164158121.

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

It is a cyclic number.

It is not a de Polignac number, because 121851461 - 2¹⁰ = 121850437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121851463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59741 + ... + 61746.

It is an arithmetic number, because the mean of its divisors is an integer number (16400880).

Almost surely, 2^121851461 is an apocalyptic number.

It is an amenable number.

121851461 is a deficient number, since it is larger than the sum of its proper divisors (9355579).

121851461 is a wasteful number, since it uses less digits than its factorization.

121851461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121563.

The product of its digits is 1920, while the sum is 29.

The square root of 121851461 is about 11038.6349246635. The cubic root of 121851461 is about 495.7661990472.

The spelling of 121851461 in words is "one hundred twenty-one million, eight hundred fifty-one thousand, four hundred sixty-one".