121144651 has 8 divisors (see below), whose sum is σ = 122554944. Its totient is φ = 119739720.

The previous prime is 121144613. The next prime is 121144691. The reversal of 121144651 is 156441121.

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 121144651 - 2⁹ = 121144139 is a prime.

It is a super-3 number, since 3×121144651³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121144691) 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, 59236 + ... + 61246.

It is an arithmetic number, because the mean of its divisors is an integer number (15319368).

Almost surely, 2^121144651 is an apocalyptic number.

121144651 is a deficient number, since it is larger than the sum of its proper divisors (1410293).

121144651 is a wasteful number, since it uses less digits than its factorization.

121144651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681.

The product of its digits is 960, while the sum is 25.

The square root of 121144651 is about 11006.5730815727. The cubic root of 121144651 is about 494.8057612900.

Adding to 121144651 its reverse (156441121), we get a palindrome (277585772).

The spelling of 121144651 in words is "one hundred twenty-one million, one hundred forty-four thousand, six hundred fifty-one".