121145293 has 4 divisors (see below), whose sum is σ = 122277600. Its totient is φ = 120012988.

The previous prime is 121145279. The next prime is 121145317. The reversal of 121145293 is 392541121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121145293 - 2⁵ = 121145261 is a prime.

It is a super-3 number, since 3×121145293³ (a number of 25 digits) contains 333 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 (121145203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565993 + ... + 566206.

It is an arithmetic number, because the mean of its divisors is an integer number (30569400).

Almost surely, 2^121145293 is an apocalyptic number.

It is an amenable number.

121145293 is a deficient number, since it is larger than the sum of its proper divisors (1132307).

121145293 is a wasteful number, since it uses less digits than its factorization.

121145293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132306.

The product of its digits is 2160, while the sum is 28.

The square root of 121145293 is about 11006.6022459249. The cubic root of 121145293 is about 494.8066353546.

The spelling of 121145293 in words is "one hundred twenty-one million, one hundred forty-five thousand, two hundred ninety-three".