1513723379 has 8 divisors (see below), whose sum is σ = 1731045888. Its totient is φ = 1296669960.

The previous prime is 1513723361. The next prime is 1513723381. The reversal of 1513723379 is 9733273151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1513723379 - 2¹² = 1513719283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513723319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55067 + ... + 77844.

It is an arithmetic number, because the mean of its divisors is an integer number (216380736).

Almost surely, 2^1513723379 is an apocalyptic number.

1513723379 is a deficient number, since it is larger than the sum of its proper divisors (217322509).

1513723379 is a wasteful number, since it uses less digits than its factorization.

1513723379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134545.

The product of its digits is 119070, while the sum is 41.

The square root of 1513723379 is about 38906.5981422175. The cubic root of 1513723379 is about 1148.1946162365.

The spelling of 1513723379 in words is "one billion, five hundred thirteen million, seven hundred twenty-three thousand, three hundred seventy-nine".