201611026 has 4 divisors (see below), whose sum is σ = 302416542. Its totient is φ = 100805512.

The previous prime is 201611017. The next prime is 201611027. The reversal of 201611026 is 620116102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620116102 = 2 ⋅310058051.

It can be written as a sum of positive squares in only one way, i.e., 131905225 + 69705801 = 11485^2 + 8349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201610994 and 201611012.

It is not an unprimeable number, because it can be changed into a prime (201611027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50402755 + ... + 50402758.

Almost surely, 2^201611026 is an apocalyptic number.

201611026 is a deficient number, since it is larger than the sum of its proper divisors (100805516).

201611026 is a wasteful number, since it uses less digits than its factorization.

201611026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100805515.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 201611026 is about 14198.9797520808. The cubic root of 201611026 is about 586.3695731597.

Adding to 201611026 its reverse (620116102), we get a palindrome (821727128).

The spelling of 201611026 in words is "two hundred one million, six hundred eleven thousand, twenty-six".