121447435 has 4 divisors (see below), whose sum is σ = 145736928. Its totient is φ = 97157944.

The previous prime is 121447421. The next prime is 121447451. The reversal of 121447435 is 534744121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534744121 = 10453 ⋅51157.

It is a cyclic number.

It is not a de Polignac number, because 121447435 - 2¹⁹ = 120923147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121447397 and 121447406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12144739 + ... + 12144748.

It is an arithmetic number, because the mean of its divisors is an integer number (36434232).

Almost surely, 2^121447435 is an apocalyptic number.

121447435 is a deficient number, since it is larger than the sum of its proper divisors (24289493).

121447435 is an equidigital number, since it uses as much as digits as its factorization.

121447435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24289492.

The product of its digits is 13440, while the sum is 31.

The square root of 121447435 is about 11020.3191877550. The cubic root of 121447435 is about 495.2176507737.

The spelling of 121447435 in words is "one hundred twenty-one million, four hundred forty-seven thousand, four hundred thirty-five".