121434091 has 2 divisors, whose sum is σ = 121434092. Its totient is φ = 121434090.

The previous prime is 121434031. The next prime is 121434097. The reversal of 121434091 is 190434121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121434091 is a prime.

It is not a weakly prime, because it can be changed into another prime (121434097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60717045 + 60717046.

It is an arithmetic number, because the mean of its divisors is an integer number (60717046).

Almost surely, 2^121434091 is an apocalyptic number.

121434091 is a deficient number, since it is larger than the sum of its proper divisors (1).

121434091 is an equidigital number, since it uses as much as digits as its factorization.

121434091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 121434091 is about 11019.7137440135. The cubic root of 121434091 is about 495.1995128131.

The spelling of 121434091 in words is "one hundred twenty-one million, four hundred thirty-four thousand, ninety-one".