121228759 has 8 divisors (see below), whose sum is σ = 130722480. Its totient is φ = 112046400.

The previous prime is 121228741. The next prime is 121228763. The reversal of 121228759 is 957822121.

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 121228759 - 2⁵ = 121228727 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121228559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77032 + ... + 78589.

It is an arithmetic number, because the mean of its divisors is an integer number (16340310).

Almost surely, 2^121228759 is an apocalyptic number.

121228759 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

121228759 is a deficient number, since it is larger than the sum of its proper divisors (9493721).

121228759 is a wasteful number, since it uses less digits than its factorization.

121228759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155681.

The product of its digits is 20160, while the sum is 37.

The square root of 121228759 is about 11010.3932264020. The cubic root of 121228759 is about 494.9202456277.

The spelling of 121228759 in words is "one hundred twenty-one million, two hundred twenty-eight thousand, seven hundred fifty-nine".