121273763 has 8 divisors (see below), whose sum is σ = 130859568. Its totient is φ = 111724704.

The previous prime is 121273723. The next prime is 121273781. The reversal of 121273763 is 367372121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121273763 - 2⁸ = 121273507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121273703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120 + ... + 15717.

It is an arithmetic number, because the mean of its divisors is an integer number (16357446).

Almost surely, 2^121273763 is an apocalyptic number.

121273763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121273763 is a deficient number, since it is larger than the sum of its proper divisors (9585805).

121273763 is a wasteful number, since it uses less digits than its factorization.

121273763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373.

The product of its digits is 10584, while the sum is 32.

The square root of 121273763 is about 11012.4367421566. The cubic root of 121273763 is about 494.9814814689.

The spelling of 121273763 in words is "one hundred twenty-one million, two hundred seventy-three thousand, seven hundred sixty-three".