121149359 has 16 divisors (see below), whose sum is σ = 127650816. Its totient is φ = 114861600.

The previous prime is 121149341. The next prime is 121149397. The reversal of 121149359 is 953941121.

121149359 = T₁₄₅₁ + T₁₄₅₂ + ... + T₁₅₅₇.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121149359 is a prime.

It is a super-2 number, since 2×121149359² = 29354334372221762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121149319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280874 + ... + 281304.

It is an arithmetic number, because the mean of its divisors is an integer number (7978176).

Almost surely, 2^121149359 is an apocalyptic number.

121149359 is a deficient number, since it is larger than the sum of its proper divisors (6501457).

121149359 is a wasteful number, since it uses less digits than its factorization.

121149359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 9720, while the sum is 35.

The square root of 121149359 is about 11006.7869516948. The cubic root of 121149359 is about 494.8121710250.

The spelling of 121149359 in words is "one hundred twenty-one million, one hundred forty-nine thousand, three hundred fifty-nine".