201321954 has 12 divisors (see below), whose sum is σ = 436197606. Its totient is φ = 67107312.

The previous prime is 201321949. The next prime is 201321961. The reversal of 201321954 is 459123102.

It can be written as a sum of positive squares in only one way, i.e., 154330929 + 46991025 = 12423^2 + 6855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5592259 + ... + 5592294.

Almost surely, 2^201321954 is an apocalyptic number.

201321954 is an abundant number, since it is smaller than the sum of its proper divisors (234875652).

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

201321954 is a wasteful number, since it uses less digits than its factorization.

201321954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184561 (or 11184558 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 201321954 is about 14188.7967777398. The cubic root of 201321954 is about 586.0891915011.

The spelling of 201321954 in words is "two hundred one million, three hundred twenty-one thousand, nine hundred fifty-four".