121150138 has 8 divisors (see below), whose sum is σ = 181789920. Its totient is φ = 60553500.

The previous prime is 121150111. The next prime is 121150147. The reversal of 121150138 is 831051121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2488 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (22723740).

Almost surely, 2^121150138 is an apocalyptic number.

121150138 is a deficient number, since it is larger than the sum of its proper divisors (60639782).

121150138 is a wasteful number, since it uses less digits than its factorization.

121150138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21572.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 121150138 is about 11006.8223388951. The cubic root of 121150138 is about 494.8132315833.

The spelling of 121150138 in words is "one hundred twenty-one million, one hundred fifty thousand, one hundred thirty-eight".