1970523 has 6 divisors (see below), whose sum is σ = 2846324. Its totient is φ = 1313676.

The previous prime is 1970519. The next prime is 1970531. The reversal of 1970523 is 3250791.

It is not a de Polignac number, because 1970523 - 2² = 1970519 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 9⁴ + 7⁴ + 0 + 5⁹ + 2¹³ + 3⁵ .

It is a Duffinian number.

1970523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1970513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109465 + ... + 109482.

2^1970523 is an apocalyptic number.

1970523 is a deficient number, since it is larger than the sum of its proper divisors (875801).

1970523 is a wasteful number, since it uses less digits than its factorization.

1970523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218953 (or 218950 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1970523 is about 1403.7531834336. The cubic root of 1970523 is about 125.3700606929.

The spelling of 1970523 in words is "one million, nine hundred seventy thousand, five hundred twenty-three".