200120949 has 48 divisors (see below), whose sum is σ = 349731200. Its totient is φ = 114354828.

The previous prime is 200120929. The next prime is 200120981. The reversal of 200120949 is 949021002.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 200120949 - 2¹² = 200116853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28588704 + ... + 28588710.

Almost surely, 2^200120949 is an apocalyptic number.

It is an amenable number.

200120949 is a deficient number, since it is larger than the sum of its proper divisors (149610251).

200120949 is an frugal number, since it uses more digits than its factorization.

200120949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 200120949 is about 14146.4111703287. The cubic root of 200120949 is about 584.9214095608.

The spelling of 200120949 in words is "two hundred million, one hundred twenty thousand, nine hundred forty-nine".