1516379 has 4 divisors (see below), whose sum is σ = 1520760. Its totient is φ = 1512000.

The previous prime is 1516369. The next prime is 1516391. The reversal of 1516379 is 9736151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9736151 = 19 ⋅512429.

It is a cyclic number.

It is not a de Polignac number, because 1516379 - 2⁴ = 1516363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622 + ... + 2379.

It is an arithmetic number, because the mean of its divisors is an integer number (380190).

2^1516379 is an apocalyptic number.

1516379 is a deficient number, since it is larger than the sum of its proper divisors (4381).

1516379 is an equidigital number, since it uses as much as digits as its factorization.

1516379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380.

The product of its digits is 5670, while the sum is 32.

The square root of 1516379 is about 1231.4134155514. The cubic root of 1516379 is about 114.8865674193.

Adding to 1516379 its sum of digits (32), we get a triangular number (1516411 = T₁₇₄₁).

It can be divided in two parts, 1516 and 379, that multiplied together give a square (574564 = 758²).

The spelling of 1516379 in words is "one million, five hundred sixteen thousand, three hundred seventy-nine".