121478037 has 8 divisors (see below), whose sum is σ = 163153536. Its totient is φ = 80393952.

The previous prime is 121478017. The next prime is 121478069. The reversal of 121478037 is 730874121.

It is a happy number.

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

It is not a de Polignac number, because 121478037 - 2¹² = 121473941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121477989 and 121478007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121478017) 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, 147373 + ... + 148194.

It is an arithmetic number, because the mean of its divisors is an integer number (20394192).

Almost surely, 2^121478037 is an apocalyptic number.

It is an amenable number.

121478037 is a deficient number, since it is larger than the sum of its proper divisors (41675499).

121478037 is a wasteful number, since it uses less digits than its factorization.

121478037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295707.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 121478037 is about 11021.7075355863. The cubic root of 121478037 is about 495.2592418205.

The spelling of 121478037 in words is "one hundred twenty-one million, four hundred seventy-eight thousand, thirty-seven".