1961373301 has 2 divisors, whose sum is σ = 1961373302. Its totient is φ = 1961373300.

The previous prime is 1961373251. The next prime is 1961373311. The reversal of 1961373301 is 1033731691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1766100625 + 195272676 = 42025^2 + 13974^2 .

It is an emirp because it is prime and its reverse (1033731691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1961373301 - 2¹⁵ = 1961340533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1961373311) 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 as a sum of consecutive naturals, namely, 980686650 + 980686651.

It is an arithmetic number, because the mean of its divisors is an integer number (980686651).

Almost surely, 2^1961373301 is an apocalyptic number.

It is an amenable number.

1961373301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1961373301 is an equidigital number, since it uses as much as digits as its factorization.

1961373301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 1961373301 is about 44287.3943803426. The cubic root of 1961373301 is about 1251.7571662826.

The spelling of 1961373301 in words is "one billion, nine hundred sixty-one million, three hundred seventy-three thousand, three hundred one".