1872749315 has 4 divisors (see below), whose sum is σ = 2247299184. Its totient is φ = 1498199448.

The previous prime is 1872749297. The next prime is 1872749369. The reversal of 1872749315 is 5139472781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5139472781 = 12539 ⋅409879.

It is a cyclic number.

It is not a de Polignac number, because 1872749315 - 2¹² = 1872745219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872749315.

It is an unprimeable number.

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, 187274927 + ... + 187274936.

It is an arithmetic number, because the mean of its divisors is an integer number (561824796).

Almost surely, 2^1872749315 is an apocalyptic number.

1872749315 is a deficient number, since it is larger than the sum of its proper divisors (374549869).

1872749315 is an equidigital number, since it uses as much as digits as its factorization.

1872749315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374549868.

The product of its digits is 423360, while the sum is 47.

The square root of 1872749315 is about 43275.2737137502. The cubic root of 1872749315 is about 1232.6124470366.

The spelling of 1872749315 in words is "one billion, eight hundred seventy-two million, seven hundred forty-nine thousand, three hundred fifteen".