1945148792 has 8 divisors (see below), whose sum is σ = 3647154000. Its totient is φ = 972574392.

The previous prime is 1945148791. The next prime is 1945148819. The reversal of 1945148792 is 2978415491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1945148792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945148791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121571792 + ... + 121571807.

It is an arithmetic number, because the mean of its divisors is an integer number (455894250).

Almost surely, 2^1945148792 is an apocalyptic number.

It is an amenable number.

1945148792 is a deficient number, since it is larger than the sum of its proper divisors (1702005208).

1945148792 is a wasteful number, since it uses less digits than its factorization.

1945148792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243143605 (or 243143601 counting only the distinct ones).

The product of its digits is 725760, while the sum is 50.

The square root of 1945148792 is about 44103.8410118665. The cubic root of 1945148792 is about 1248.2960873607.

The spelling of 1945148792 in words is "one billion, nine hundred forty-five million, one hundred forty-eight thousand, seven hundred ninety-two".