1945700245 has 16 divisors (see below), whose sum is σ = 2349225648. Its totient is φ = 1546997760.

The previous prime is 1945700231. The next prime is 1945700279. The reversal of 1945700245 is 5420075491.

It can be written as a sum of positive squares in 8 ways, for example, as 9084196 + 1936616049 = 3014^2 + 44007^2 .

It is not a de Polignac number, because 1945700245 - 2¹¹ = 1945698197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742177 + ... + 744793.

It is an arithmetic number, because the mean of its divisors is an integer number (146826603).

Almost surely, 2^1945700245 is an apocalyptic number.

It is an amenable number.

1945700245 is a deficient number, since it is larger than the sum of its proper divisors (403525403).

1945700245 is a wasteful number, since it uses less digits than its factorization.

1945700245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1945700245 is about 44110.0923259066. The cubic root of 1945700245 is about 1248.4140409047.

The spelling of 1945700245 in words is "one billion, nine hundred forty-five million, seven hundred thousand, two hundred forty-five".