121145833 has 2 divisors, whose sum is σ = 121145834. Its totient is φ = 121145832.

The previous prime is 121145813. The next prime is 121145839. The reversal of 121145833 is 338541121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116467264 + 4678569 = 10792^2 + 2163^2 .

It is a cyclic number.

It is not a de Polignac number, because 121145833 - 2²¹ = 119048681 is a prime.

It is a super-3 number, since 3×121145833³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121145839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60572916 + 60572917.

It is an arithmetic number, because the mean of its divisors is an integer number (60572917).

Almost surely, 2^121145833 is an apocalyptic number.

It is an amenable number.

121145833 is a deficient number, since it is larger than the sum of its proper divisors (1).

121145833 is an equidigital number, since it uses as much as digits as its factorization.

121145833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

The square root of 121145833 is about 11006.6267766287. The cubic root of 121145833 is about 494.8073705467.

Adding to 121145833 its reverse (338541121), we get a palindrome (459686954).

The spelling of 121145833 in words is "one hundred twenty-one million, one hundred forty-five thousand, eight hundred thirty-three".