1345144550 has 48 divisors (see below), whose sum is σ = 2692675872. Its totient is φ = 498086400.

The previous prime is 1345144513. The next prime is 1345144553. The reversal of 1345144550 is 554415431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345144553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38879 + ... + 64821.

It is an arithmetic number, because the mean of its divisors is an integer number (56097414).

Almost surely, 2^1345144550 is an apocalyptic number.

1345144550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345144550 is an abundant number, since it is smaller than the sum of its proper divisors (1347531322).

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

1345144550 is a wasteful number, since it uses less digits than its factorization.

1345144550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26033 (or 26028 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1345144550 is about 36676.2123180680. The cubic root of 1345144550 is about 1103.8828482029.

Adding to 1345144550 its reverse (554415431), we get a palindrome (1899559981).

The spelling of 1345144550 in words is "one billion, three hundred forty-five million, one hundred forty-four thousand, five hundred fifty".