201056426 has 4 divisors (see below), whose sum is σ = 301584642. Its totient is φ = 100528212.

The previous prime is 201056413. The next prime is 201056441. The reversal of 201056426 is 624650102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624650102 = 2 ⋅312325051.

It can be written as a sum of positive squares in only one way, i.e., 198951025 + 2105401 = 14105^2 + 1451^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201056395 and 201056404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50264105 + ... + 50264108.

Almost surely, 2^201056426 is an apocalyptic number.

201056426 is a deficient number, since it is larger than the sum of its proper divisors (100528216).

201056426 is a wasteful number, since it uses less digits than its factorization.

201056426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100528215.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 201056426 is about 14179.4367307027. The cubic root of 201056426 is about 585.8314094491.

The spelling of 201056426 in words is "two hundred one million, fifty-six thousand, four hundred twenty-six".