1970097001 has 4 divisors (see below), whose sum is σ = 1970187604. Its totient is φ = 1970006400.

The previous prime is 1970096981. The next prime is 1970097013. The reversal of 1970097001 is 1007900791.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 413715600 + 1556381401 = 20340^2 + 39451^2 .

It is a 3-Lehmer number, since φ(1970097001) divides (1970097001-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1970097001 - 2⁷ = 1970096873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970091001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9061 + ... + 63421.

It is an arithmetic number, because the mean of its divisors is an integer number (492546901).

It is a Poulet number, since it divides 2^1970097000-1.

Almost surely, 2^1970097001 is an apocalyptic number.

1970097001 is the 36241-st pentagonal number.

It is an amenable number.

1970097001 is a deficient number, since it is larger than the sum of its proper divisors (90603).

1970097001 is an equidigital number, since it uses as much as digits as its factorization.

1970097001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90602.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 1970097001 is about 44385.7747594880. The cubic root of 1970097001 is about 1253.6102563474.

Adding to 1970097001 its reverse (1007900791), we get a palindrome (2977997792).

The spelling of 1970097001 in words is "one billion, nine hundred seventy million, ninety-seven thousand, one".