121187533 has 2 divisors, whose sum is σ = 121187534. Its totient is φ = 121187532.

The previous prime is 121187503. The next prime is 121187551. The reversal of 121187533 is 335781121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108097609 + 13089924 = 10397^2 + 3618^2 .

It is a cyclic number.

It is not a de Polignac number, because 121187533 - 2¹⁷ = 121056461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121187495 and 121187504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121187503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593766 + 60593767.

It is an arithmetic number, because the mean of its divisors is an integer number (60593767).

Almost surely, 2^121187533 is an apocalyptic number.

It is an amenable number.

121187533 is a deficient number, since it is larger than the sum of its proper divisors (1).

121187533 is an equidigital number, since it uses as much as digits as its factorization.

121187533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 121187533 is about 11008.5209269911. The cubic root of 121187533 is about 494.8641371170.

The spelling of 121187533 in words is "one hundred twenty-one million, one hundred eighty-seven thousand, five hundred thirty-three".