121438793 has 8 divisors (see below), whose sum is σ = 138861120. Its totient is φ = 104034960.

The previous prime is 121438783. The next prime is 121438799. The reversal of 121438793 is 397834121.

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

It is a cyclic number.

It is not a de Polignac number, because 121438793 - 2¹⁴ = 121422409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121438799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15038 + ... + 21656.

It is an arithmetic number, because the mean of its divisors is an integer number (17357640).

Almost surely, 2^121438793 is an apocalyptic number.

It is an amenable number.

121438793 is a deficient number, since it is larger than the sum of its proper divisors (17422327).

121438793 is an equidigital number, since it uses as much as digits as its factorization.

121438793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247.

The product of its digits is 36288, while the sum is 38.

The square root of 121438793 is about 11019.9270868731. The cubic root of 121438793 is about 495.2059042035.

The spelling of 121438793 in words is "one hundred twenty-one million, four hundred thirty-eight thousand, seven hundred ninety-three".