121041406 has 4 divisors (see below), whose sum is σ = 181562112. Its totient is φ = 60520702.

The previous prime is 121041383. The next prime is 121041413. The reversal of 121041406 is 604140121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30260350 + ... + 30260353.

It is an arithmetic number, because the mean of its divisors is an integer number (45390528).

Almost surely, 2^121041406 is an apocalyptic number.

121041406 is a deficient number, since it is larger than the sum of its proper divisors (60520706).

121041406 is an equidigital number, since it uses as much as digits as its factorization.

121041406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60520705.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 121041406 is about 11001.8819299245. The cubic root of 121041406 is about 494.6651559890.

Adding to 121041406 its reverse (604140121), we get a palindrome (725181527).

The spelling of 121041406 in words is "one hundred twenty-one million, forty-one thousand, four hundred six".