2148765957 has 12 divisors (see below), whose sum is σ = 3342525004. Its totient is φ = 1322317440.

The previous prime is 2148765953. The next prime is 2148765967. The reversal of 2148765957 is 7595678412.

2148765957 is a `hidden beast` number, since 2 + 1 + 48 + 7 + 6 + 595 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 205807716 + 1942958241 = 14346^2 + 44079^2 .

It is not a de Polignac number, because 2148765957 - 2² = 2148765953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148765953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9182644 + ... + 9182877.

Almost surely, 2^2148765957 is an apocalyptic number.

It is an amenable number.

2148765957 is a deficient number, since it is larger than the sum of its proper divisors (1193759047).

2148765957 is a wasteful number, since it uses less digits than its factorization.

2148765957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18365540 (or 18365537 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 2148765957 is about 46354.7835395658. The cubic root of 2148765957 is about 1290.4158979889.

The spelling of 2148765957 in words is "two billion, one hundred forty-eight million, seven hundred sixty-five thousand, nine hundred fifty-seven".