121415029 has 4 divisors (see below), whose sum is σ = 122617260. Its totient is φ = 120212800.

The previous prime is 121415027. The next prime is 121415039. The reversal of 121415029 is 920514121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60606225 + 60808804 = 7785^2 + 7798^2 .

It is a cyclic number.

It is not a de Polignac number, because 121415029 - 2¹ = 121415027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121414994 and 121415012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121415027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600964 + ... + 601165.

It is an arithmetic number, because the mean of its divisors is an integer number (30654315).

Almost surely, 2^121415029 is an apocalyptic number.

It is an amenable number.

121415029 is a deficient number, since it is larger than the sum of its proper divisors (1202231).

121415029 is a wasteful number, since it uses less digits than its factorization.

121415029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202230.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 121415029 is about 11018.8488055695. The cubic root of 121415029 is about 495.1736003010.

The spelling of 121415029 in words is "one hundred twenty-one million, four hundred fifteen thousand, twenty-nine".