121192493 has 2 divisors, whose sum is σ = 121192494. Its totient is φ = 121192492.

The previous prime is 121192471. The next prime is 121192523. The reversal of 121192493 is 394291121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106956964 + 14235529 = 10342^2 + 3773^2 .

It is a cyclic number.

It is not a de Polignac number, because 121192493 - 2²⁰ = 120143917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121192403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60596246 + 60596247.

It is an arithmetic number, because the mean of its divisors is an integer number (60596247).

Almost surely, 2^121192493 is an apocalyptic number.

It is an amenable number.

121192493 is a deficient number, since it is larger than the sum of its proper divisors (1).

121192493 is an equidigital number, since it uses as much as digits as its factorization.

121192493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 121192493 is about 11008.7462047229. The cubic root of 121192493 is about 494.8708883413.

The spelling of 121192493 in words is "one hundred twenty-one million, one hundred ninety-two thousand, four hundred ninety-three".