1452172915 has 4 divisors (see below), whose sum is σ = 1742607504. Its totient is φ = 1161738328.

The previous prime is 1452172903. The next prime is 1452172921. The reversal of 1452172915 is 5192712541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5192712541 = 1987 ⋅2613343.

It is a cyclic number.

It is not a de Polignac number, because 1452172915 - 2¹³ = 1452164723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145217287 + ... + 145217296.

It is an arithmetic number, because the mean of its divisors is an integer number (435651876).

Almost surely, 2^1452172915 is an apocalyptic number.

1452172915 is a deficient number, since it is larger than the sum of its proper divisors (290434589).

1452172915 is an equidigital number, since it uses as much as digits as its factorization.

1452172915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290434588.

The product of its digits is 25200, while the sum is 37.

The square root of 1452172915 is about 38107.3866199192. The cubic root of 1452172915 is about 1132.4162968673.

The spelling of 1452172915 in words is "one billion, four hundred fifty-two million, one hundred seventy-two thousand, nine hundred fifteen".