121089249 has 40 divisors (see below), whose sum is σ = 195706368. Its totient is φ = 74321280.

The previous prime is 121089229. The next prime is 121089263. The reversal of 121089249 is 942980121.

It is not a de Polignac number, because 121089249 - 2⁷ = 121089121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121089229) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63784 + ... + 65654.

Almost surely, 2^121089249 is an apocalyptic number.

It is an amenable number.

121089249 is a deficient number, since it is larger than the sum of its proper divisors (74617119).

121089249 is a wasteful number, since it uses less digits than its factorization.

121089249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 121089249 is about 11004.0560249392. The cubic root of 121089249 is about 494.7303214239.

The spelling of 121089249 in words is "one hundred twenty-one million, eighty-nine thousand, two hundred forty-nine".