121432258 has 16 divisors (see below), whose sum is σ = 197350560. Its totient is φ = 55814976.

The previous prime is 121432247. The next prime is 121432271. The reversal of 121432258 is 852234121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40068 + ... + 42991.

It is an arithmetic number, because the mean of its divisors is an integer number (12334410).

Almost surely, 2^121432258 is an apocalyptic number.

121432258 is a deficient number, since it is larger than the sum of its proper divisors (75918302).

121432258 is a wasteful number, since it uses less digits than its factorization.

121432258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83121.

The product of its digits is 3840, while the sum is 28.

The square root of 121432258 is about 11019.6305745701. The cubic root of 121432258 is about 495.1970211864.

Adding to 121432258 its reverse (852234121), we get a palindrome (973666379).

The spelling of 121432258 in words is "one hundred twenty-one million, four hundred thirty-two thousand, two hundred fifty-eight".