201054166 has 4 divisors (see below), whose sum is σ = 301581252. Its totient is φ = 100527082.

The previous prime is 201054157. The next prime is 201054167. The reversal of 201054166 is 661450102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661450102 = 2 ⋅330725051.

It is a self number, because there is not a number n which added to its sum of digits gives 201054166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201054167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50263540 + ... + 50263543.

It is an arithmetic number, because the mean of its divisors is an integer number (75395313).

Almost surely, 2^201054166 is an apocalyptic number.

201054166 is a deficient number, since it is larger than the sum of its proper divisors (100527086).

201054166 is a wasteful number, since it uses less digits than its factorization.

201054166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100527085.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 201054166 is about 14179.3570376093. The cubic root of 201054166 is about 585.8292144037.

The spelling of 201054166 in words is "two hundred one million, fifty-four thousand, one hundred sixty-six".