121150133 has 4 divisors (see below), whose sum is σ = 130469388. Its totient is φ = 111830880.

The previous prime is 121150111. The next prime is 121150147. The reversal of 121150133 is 331051121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331051121 = 23 ⋅14393527.

It can be written as a sum of positive squares in 2 ways, for example, as 69338929 + 51811204 = 8327^2 + 7198^2 .

It is a cyclic number.

It is not a de Polignac number, because 121150133 - 2¹⁸ = 120887989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121150163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4659608 + ... + 4659633.

It is an arithmetic number, because the mean of its divisors is an integer number (32617347).

Almost surely, 2^121150133 is an apocalyptic number.

121150133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121150133 is a deficient number, since it is larger than the sum of its proper divisors (9319255).

121150133 is an equidigital number, since it uses as much as digits as its factorization.

121150133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319254.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 121150133 is about 11006.8221117632. The cubic root of 121150133 is about 494.8132247761.

The spelling of 121150133 in words is "one hundred twenty-one million, one hundred fifty thousand, one hundred thirty-three".