2000121154 has 8 divisors (see below), whose sum is σ = 3001918140. Its totient is φ = 999481776.

The previous prime is 2000121121. The next prime is 2000121161. The reversal of 2000121154 is 4511210002.

It can be written as a sum of positive squares in 2 ways, for example, as 1736805625 + 263315529 = 41675^2 + 16227^2 .

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, 285069 + ... + 292000.

Almost surely, 2^2000121154 is an apocalyptic number.

2000121154 is a deficient number, since it is larger than the sum of its proper divisors (1001796986).

2000121154 is a wasteful number, since it uses less digits than its factorization.

2000121154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578804.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2000121154 is about 44722.7140723816. The cubic root of 2000121154 is about 1259.9464901270.

Adding to 2000121154 its reverse (4511210002), we get a palindrome (6511331156).

The spelling of 2000121154 in words is "two billion, one hundred twenty-one thousand, one hundred fifty-four".