121177493 has 2 divisors, whose sum is σ = 121177494. Its totient is φ = 121177492.

The previous prime is 121177447. The next prime is 121177499. The reversal of 121177493 is 394771121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105001009 + 16176484 = 10247^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 121177493 - 2⁶ = 121177429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121177499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60588746 + 60588747.

It is an arithmetic number, because the mean of its divisors is an integer number (60588747).

Almost surely, 2^121177493 is an apocalyptic number.

It is an amenable number.

121177493 is a deficient number, since it is larger than the sum of its proper divisors (1).

121177493 is an equidigital number, since it uses as much as digits as its factorization.

121177493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 121177493 is about 11008.0649071488. The cubic root of 121177493 is about 494.8504707686.

The spelling of 121177493 in words is "one hundred twenty-one million, one hundred seventy-seven thousand, four hundred ninety-three".