1315442389 has 8 divisors (see below), whose sum is σ = 1359947648. Its totient is φ = 1271408400.

The previous prime is 1315442383. The next prime is 1315442399. The reversal of 1315442389 is 9832445131.

It is a happy number.

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 1315442389 - 2¹⁷ = 1315311317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315442383) 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, 112137 + ... + 123310.

It is an arithmetic number, because the mean of its divisors is an integer number (169993456).

Almost surely, 2^1315442389 is an apocalyptic number.

It is an amenable number.

1315442389 is a deficient number, since it is larger than the sum of its proper divisors (44505259).

1315442389 is a wasteful number, since it uses less digits than its factorization.

1315442389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235635.

The product of its digits is 103680, while the sum is 40.

The square root of 1315442389 is about 36269.0279577493. The cubic root of 1315442389 is about 1095.6973488683.

The spelling of 1315442389 in words is "one billion, three hundred fifteen million, four hundred forty-two thousand, three hundred eighty-nine".