1344632145 has 32 divisors (see below), whose sum is σ = 2205869952. Its totient is φ = 699052032.

The previous prime is 1344632137. The next prime is 1344632171. The reversal of 1344632145 is 5412364431.

It is a happy number.

It is not a de Polignac number, because 1344632145 - 2³ = 1344632137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370359 + ... + 373971.

It is an arithmetic number, because the mean of its divisors is an integer number (68933436).

Almost surely, 2^1344632145 is an apocalyptic number.

1344632145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344632145 is a deficient number, since it is larger than the sum of its proper divisors (861237807).

1344632145 is a wasteful number, since it uses less digits than its factorization.

1344632145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241.

The product of its digits is 34560, while the sum is 33.

The square root of 1344632145 is about 36669.2261303671. The cubic root of 1344632145 is about 1103.7426632867.

Adding to 1344632145 its reverse (5412364431), we get a palindrome (6756996576).

The spelling of 1344632145 in words is "one billion, three hundred forty-four million, six hundred thirty-two thousand, one hundred forty-five".