121754651 has 2 divisors, whose sum is σ = 121754652. Its totient is φ = 121754650.

The previous prime is 121754623. The next prime is 121754653. The reversal of 121754651 is 156457121.

It is a strong prime.

It is an emirp because it is prime and its reverse (156457121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121754651 is a prime.

Together with 121754653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121754653) 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 as a sum of consecutive naturals, namely, 60877325 + 60877326.

It is an arithmetic number, because the mean of its divisors is an integer number (60877326).

Almost surely, 2^121754651 is an apocalyptic number.

121754651 is a deficient number, since it is larger than the sum of its proper divisors (1).

121754651 is an equidigital number, since it uses as much as digits as its factorization.

121754651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 121754651 is about 11034.2490002718. The cubic root of 121754651 is about 495.6348701830.

The spelling of 121754651 in words is "one hundred twenty-one million, seven hundred fifty-four thousand, six hundred fifty-one".