121024145 has 32 divisors (see below), whose sum is σ = 164571264. Its totient is φ = 84672000.

The previous prime is 121024133. The next prime is 121024157. The reversal of 121024145 is 541420121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121024133) and next prime (121024157).

It is not a de Polignac number, because 121024145 - 2⁶ = 121024081 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172295 + ... + 172995.

It is an arithmetic number, because the mean of its divisors is an integer number (5142852).

Almost surely, 2^121024145 is an apocalyptic number.

It is an amenable number.

121024145 is a deficient number, since it is larger than the sum of its proper divisors (43547119).

121024145 is a wasteful number, since it uses less digits than its factorization.

121024145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 121024145 is about 11001.0974452552. The cubic root of 121024145 is about 494.6416411124.

Adding to 121024145 its reverse (541420121), we get a palindrome (662444266).

The spelling of 121024145 in words is "one hundred twenty-one million, twenty-four thousand, one hundred forty-five".