121093145 has 4 divisors (see below), whose sum is σ = 145311780. Its totient is φ = 96874512.

The previous prime is 121093123. The next prime is 121093169. The reversal of 121093145 is 541390121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541390121 = 229 ⋅2364149.

It can be written as a sum of positive squares in 2 ways, for example, as 50751376 + 70341769 = 7124^2 + 8387^2 .

It is a cyclic number.

It is not a de Polignac number, because 121093145 - 2⁶ = 121093081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12109310 + ... + 12109319.

It is an arithmetic number, because the mean of its divisors is an integer number (36327945).

Almost surely, 2^121093145 is an apocalyptic number.

It is an amenable number.

121093145 is a deficient number, since it is larger than the sum of its proper divisors (24218635).

121093145 is an equidigital number, since it uses as much as digits as its factorization.

121093145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24218634.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 121093145 is about 11004.2330491498. The cubic root of 121093145 is about 494.7356272863.

The spelling of 121093145 in words is "one hundred twenty-one million, ninety-three thousand, one hundred forty-five".