121976438 has 8 divisors (see below), whose sum is σ = 185541840. Its totient is φ = 60129160.

The previous prime is 121976431. The next prime is 121976461. The reversal of 121976438 is 834679121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121976395 and 121976404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121976431) 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, 429353 + ... + 429636.

It is an arithmetic number, because the mean of its divisors is an integer number (23192730).

Almost surely, 2^121976438 is an apocalyptic number.

121976438 is a deficient number, since it is larger than the sum of its proper divisors (63565402).

121976438 is an equidigital number, since it uses as much as digits as its factorization.

121976438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859062.

The product of its digits is 72576, while the sum is 41.

The square root of 121976438 is about 11044.2943640597. The cubic root of 121976438 is about 495.9356354001.

The spelling of 121976438 in words is "one hundred twenty-one million, nine hundred seventy-six thousand, four hundred thirty-eight".