1945930597 has 4 divisors (see below), whose sum is σ = 2095617580. Its totient is φ = 1796243616.

The previous prime is 1945930579. The next prime is 1945930627. The reversal of 1945930597 is 7950395491.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264192516 + 1681738081 = 16254^2 + 41009^2 .

It is a cyclic number.

It is not a de Polignac number, because 1945930597 - 2²⁷ = 1811712869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945930097) 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, 74843472 + ... + 74843497.

It is an arithmetic number, because the mean of its divisors is an integer number (523904395).

Almost surely, 2^1945930597 is an apocalyptic number.

It is an amenable number.

1945930597 is a deficient number, since it is larger than the sum of its proper divisors (149686983).

1945930597 is a wasteful number, since it uses less digits than its factorization.

1945930597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149686982.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 1945930597 is about 44112.7033517557. The cubic root of 1945930597 is about 1248.4633056572.

The spelling of 1945930597 in words is "one billion, nine hundred forty-five million, nine hundred thirty thousand, five hundred ninety-seven".