121565342 has 8 divisors (see below), whose sum is σ = 182397432. Its totient is φ = 60766200.

The previous prime is 121565341. The next prime is 121565357. The reversal of 121565342 is 243565121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121565341) 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 3 ways as a sum of consecutive naturals, for example, 5717 + ... + 16607.

It is an arithmetic number, because the mean of its divisors is an integer number (22799679).

Almost surely, 2^121565342 is an apocalyptic number.

121565342 is a deficient number, since it is larger than the sum of its proper divisors (60832090).

121565342 is a wasteful number, since it uses less digits than its factorization.

121565342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16474.

The product of its digits is 7200, while the sum is 29.

The square root of 121565342 is about 11025.6674174401. The cubic root of 121565342 is about 495.3778592950.

The spelling of 121565342 in words is "one hundred twenty-one million, five hundred sixty-five thousand, three hundred forty-two".