1426056197 has 4 divisors (see below), whose sum is σ = 1426424736. Its totient is φ = 1425687660.

The previous prime is 1426056131. The next prime is 1426056209. The reversal of 1426056197 is 7916506241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1426056197 - 2¹⁰ = 1426055173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426056397) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 178403 + ... + 186224.

It is an arithmetic number, because the mean of its divisors is an integer number (356606184).

Almost surely, 2^1426056197 is an apocalyptic number.

It is an amenable number.

1426056197 is a deficient number, since it is larger than the sum of its proper divisors (368539).

1426056197 is an equidigital number, since it uses as much as digits as its factorization.

1426056197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368538.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1426056197 is about 37763.1592560792. The cubic root of 1426056197 is about 1125.5865114898.

The spelling of 1426056197 in words is "one billion, four hundred twenty-six million, fifty-six thousand, one hundred ninety-seven".