2012195426 has 4 divisors (see below), whose sum is σ = 3018293142. Its totient is φ = 1006097712.

The previous prime is 2012195377. The next prime is 2012195441. The reversal of 2012195426 is 6245912102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6245912102 = 2 ⋅3122956051.

It can be written as a sum of positive squares in only one way, i.e., 1882258225 + 129937201 = 43385^2 + 11399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2012195392 and 2012195401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503048855 + ... + 503048858.

Almost surely, 2^2012195426 is an apocalyptic number.

2012195426 is a deficient number, since it is larger than the sum of its proper divisors (1006097716).

2012195426 is a wasteful number, since it uses less digits than its factorization.

2012195426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006097715.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2012195426 is about 44857.5013347823. The cubic root of 2012195426 is about 1262.4767412766.

The spelling of 2012195426 in words is "two billion, twelve million, one hundred ninety-five thousand, four hundred twenty-six".