201557074 has 4 divisors (see below), whose sum is σ = 302335614. Its totient is φ = 100778536.

The previous prime is 201557053. The next prime is 201557101. The reversal of 201557074 is 470755102.

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., 201498025 + 59049 = 14195^2 + 243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50389267 + ... + 50389270.

Almost surely, 2^201557074 is an apocalyptic number.

201557074 is a deficient number, since it is larger than the sum of its proper divisors (100778540).

201557074 is a wasteful number, since it uses less digits than its factorization.

201557074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100778539.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 201557074 is about 14197.0797701499. The cubic root of 201557074 is about 586.3172634651.

The spelling of 201557074 in words is "two hundred one million, five hundred fifty-seven thousand, seventy-four".