1970453813 has 4 divisors (see below), whose sum is σ = 1983503328. Its totient is φ = 1957404300.

The previous prime is 1970453789. The next prime is 1970453819. The reversal of 1970453813 is 3183540791.

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 1970453813 - 2¹⁰ = 1970452789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1970453819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6524531 + ... + 6524832.

It is an arithmetic number, because the mean of its divisors is an integer number (495875832).

Almost surely, 2^1970453813 is an apocalyptic number.

It is an amenable number.

1970453813 is a deficient number, since it is larger than the sum of its proper divisors (13049515).

1970453813 is a wasteful number, since it uses less digits than its factorization.

1970453813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13049514.

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

The square root of 1970453813 is about 44389.7940184453. The cubic root of 1970453813 is about 1253.6859338700.

The spelling of 1970453813 in words is "one billion, nine hundred seventy million, four hundred fifty-three thousand, eight hundred thirteen".