1915148801 has 4 divisors (see below), whose sum is σ = 1916006400. Its totient is φ = 1914291204.

The previous prime is 1915148779. The next prime is 1915148803. The reversal of 1915148801 is 1088415191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1915148801 - 2²⁶ = 1848039937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1915148803) 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 in 3 ways as a sum of consecutive naturals, for example, 425441 + ... + 429918.

It is an arithmetic number, because the mean of its divisors is an integer number (479001600).

Almost surely, 2^1915148801 is an apocalyptic number.

It is an amenable number.

1915148801 is a deficient number, since it is larger than the sum of its proper divisors (857599).

1915148801 is an equidigital number, since it uses as much as digits as its factorization.

1915148801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857598.

The product of its (nonzero) digits is 11520, while the sum is 38.

The square root of 1915148801 is about 43762.4131075973. The cubic root of 1915148801 is about 1241.8453276200.

The spelling of 1915148801 in words is "one billion, nine hundred fifteen million, one hundred forty-eight thousand, eight hundred one".