670131401 has 2 divisors, whose sum is σ = 670131402. Its totient is φ = 670131400.

The previous prime is 670131389. The next prime is 670131409. The reversal of 670131401 is 104131076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580810000 + 89321401 = 24100^2 + 9451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670131401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670131409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335065700 + 335065701.

It is an arithmetic number, because the mean of its divisors is an integer number (335065701).

Almost surely, 2^670131401 is an apocalyptic number.

It is an amenable number.

670131401 is a deficient number, since it is larger than the sum of its proper divisors (1).

670131401 is an equidigital number, since it uses as much as digits as its factorization.

670131401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 670131401 is about 25886.8963184079. The cubic root of 670131401 is about 875.0912126955.

Adding to 670131401 its reverse (104131076), we get a palindrome (774262477).

The spelling of 670131401 in words is "six hundred seventy million, one hundred thirty-one thousand, four hundred one".