121850142 has 32 divisors (see below), whose sum is σ = 247750272. Its totient is φ = 39946464.

The previous prime is 121850117. The next prime is 121850143. The reversal of 121850142 is 241058121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121850143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152488 + ... + 153284.

It is an arithmetic number, because the mean of its divisors is an integer number (7742196).

Almost surely, 2^121850142 is an apocalyptic number.

121850142 is an abundant number, since it is smaller than the sum of its proper divisors (125900130).

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

121850142 is a wasteful number, since it uses less digits than its factorization.

121850142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 121850142 is about 11038.5751797956. The cubic root of 121850142 is about 495.7644102081.

It can be divided in two parts, 1218 and 50142, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 121850142 in words is "one hundred twenty-one million, eight hundred fifty thousand, one hundred forty-two".