1348945815 has 64 divisors (see below), whose sum is σ = 2543385600. Its totient is φ = 597611520.

The previous prime is 1348945813. The next prime is 1348945847. The reversal of 1348945815 is 5185498431.

It is a happy number.

It is not a de Polignac number, because 1348945815 - 2¹ = 1348945813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1348945813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1285411 + ... + 1286459.

It is an arithmetic number, because the mean of its divisors is an integer number (39740400).

Almost surely, 2^1348945815 is an apocalyptic number.

1348945815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1348945815 is a deficient number, since it is larger than the sum of its proper divisors (1194439785).

1348945815 is a wasteful number, since it uses less digits than its factorization.

1348945815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432.

The product of its digits is 691200, while the sum is 48.

The square root of 1348945815 is about 36727.9976993029. The cubic root of 1348945815 is about 1104.9216968462.

The spelling of 1348945815 in words is "one billion, three hundred forty-eight million, nine hundred forty-five thousand, eight hundred fifteen".