1955172367 has 2 divisors, whose sum is σ = 1955172368. Its totient is φ = 1955172366.

The previous prime is 1955172361. The next prime is 1955172383. The reversal of 1955172367 is 7632715591.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7632715591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1955172367 - 2²³ = 1946783759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1955172361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977586183 + 977586184.

It is an arithmetic number, because the mean of its divisors is an integer number (977586184).

Almost surely, 2^1955172367 is an apocalyptic number.

1955172367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1955172367 is an equidigital number, since it uses as much as digits as its factorization.

1955172367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 46.

The square root of 1955172367 is about 44217.3310705203. The cubic root of 1955172367 is about 1250.4366190999.

The spelling of 1955172367 in words is "one billion, nine hundred fifty-five million, one hundred seventy-two thousand, three hundred sixty-seven".