121132747 has 2 divisors, whose sum is σ = 121132748. Its totient is φ = 121132746.

The previous prime is 121132721. The next prime is 121132751. The reversal of 121132747 is 747231121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121132747 is a prime.

It is not a weakly prime, because it can be changed into another prime (121132757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60566373 + 60566374.

It is an arithmetic number, because the mean of its divisors is an integer number (60566374).

Almost surely, 2^121132747 is an apocalyptic number.

121132747 is a deficient number, since it is larger than the sum of its proper divisors (1).

121132747 is an equidigital number, since it uses as much as digits as its factorization.

121132747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 28.

The square root of 121132747 is about 11006.0323005159. The cubic root of 121132747 is about 494.7895537764.

Adding to 121132747 its reverse (747231121), we get a palindrome (868363868).

The spelling of 121132747 in words is "one hundred twenty-one million, one hundred thirty-two thousand, seven hundred forty-seven".