1345115550 has 48 divisors (see below), whose sum is σ = 3358035072. Its totient is φ = 356316000.

The previous prime is 1345115537. The next prime is 1345115561. The reversal of 1345115550 is 555115431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7044 + ... + 52343.

It is an arithmetic number, because the mean of its divisors is an integer number (69959064).

Almost surely, 2^1345115550 is an apocalyptic number.

1345115550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345115550 is an abundant number, since it is smaller than the sum of its proper divisors (2012919522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345115550 is a wasteful number, since it uses less digits than its factorization.

1345115550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59553 (or 59548 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1345115550 is about 36675.8169643159. The cubic root of 1345115550 is about 1103.8749152680.

The spelling of 1345115550 in words is "one billion, three hundred forty-five million, one hundred fifteen thousand, five hundred fifty".