121605342 has 16 divisors (see below), whose sum is σ = 244447632. Its totient is φ = 40328960.

The previous prime is 121605331. The next prime is 121605353. The reversal of 121605342 is 243506121.

It is an interprime number because it is at equal distance from previous prime (121605331) and next prime (121605353).

It is a congruent number.

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, 50259 + ... + 52622.

It is an arithmetic number, because the mean of its divisors is an integer number (15277977).

Almost surely, 2^121605342 is an apocalyptic number.

121605342 is an abundant number, since it is smaller than the sum of its proper divisors (122842290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121605342 is a wasteful number, since it uses less digits than its factorization.

121605342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103083.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 121605342 is about 11027.4812173950. The cubic root of 121605342 is about 495.4321865704.

The spelling of 121605342 in words is "one hundred twenty-one million, six hundred five thousand, three hundred forty-two".