121334745 has 16 divisors (see below), whose sum is σ = 221869440. Its totient is φ = 55467264.

The previous prime is 121334737. The next prime is 121334747. The reversal of 121334745 is 547433121.

It is a happy number.

It is not a de Polignac number, because 121334745 - 2³ = 121334737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121334747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577680 + ... + 577889.

It is an arithmetic number, because the mean of its divisors is an integer number (13866840).

Almost surely, 2^121334745 is an apocalyptic number.

121334745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121334745 is a deficient number, since it is larger than the sum of its proper divisors (100534695).

121334745 is a wasteful number, since it uses less digits than its factorization.

121334745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155584.

The product of its digits is 10080, while the sum is 30.

The square root of 121334745 is about 11015.2051728508. The cubic root of 121334745 is about 495.0644340161.

Adding to 121334745 its reverse (547433121), we get a palindrome (668767866).

The spelling of 121334745 in words is "one hundred twenty-one million, three hundred thirty-four thousand, seven hundred forty-five".