201551074 has 4 divisors (see below), whose sum is σ = 302326614. Its totient is φ = 100775536.

The previous prime is 201551033. The next prime is 201551083. The reversal of 201551074 is 470155102.

201551074 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133240849 + 68310225 = 11543^2 + 8265^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50387767 + ... + 50387770.

Almost surely, 2^201551074 is an apocalyptic number.

201551074 is a deficient number, since it is larger than the sum of its proper divisors (100775540).

201551074 is a wasteful number, since it uses less digits than its factorization.

201551074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100775539.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 201551074 is about 14196.8684575156. The cubic root of 201551074 is about 586.3114455291.

The spelling of 201551074 in words is "two hundred one million, five hundred fifty-one thousand, seventy-four".