121010945 has 8 divisors (see below), whose sum is σ = 158414400. Its totient is φ = 88007920.

The previous prime is 121010933. The next prime is 121010951. The reversal of 121010945 is 549010121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121010945 - 2⁸ = 121010689 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121010945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100045 + ... + 1100154.

It is an arithmetic number, because the mean of its divisors is an integer number (19801800).

Almost surely, 2^121010945 is an apocalyptic number.

It is an amenable number.

121010945 is a deficient number, since it is larger than the sum of its proper divisors (37403455).

121010945 is a wasteful number, since it uses less digits than its factorization.

121010945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200215.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 121010945 is about 11000.4974887502. The cubic root of 121010945 is about 494.6236570783.

The spelling of 121010945 in words is "one hundred twenty-one million, ten thousand, nine hundred forty-five".