1375434249 has 32 divisors (see below), whose sum is σ = 2270822400. Its totient is φ = 722518272.

The previous prime is 1375434233. The next prime is 1375434253. The reversal of 1375434249 is 9424345731.

It is a happy number.

It is not a de Polignac number, because 1375434249 - 2⁴ = 1375434233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1375434249.

It is not an unprimeable number, because it can be changed into a prime (1375434259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29449 + ... + 60150.

It is an arithmetic number, because the mean of its divisors is an integer number (70963200).

Almost surely, 2^1375434249 is an apocalyptic number.

It is an amenable number.

1375434249 is a deficient number, since it is larger than the sum of its proper divisors (895388151).

1375434249 is a wasteful number, since it uses less digits than its factorization.

1375434249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89669.

The product of its digits is 362880, while the sum is 42.

The square root of 1375434249 is about 37086.8473855624. The cubic root of 1375434249 is about 1112.1070949186.

The spelling of 1375434249 in words is "one billion, three hundred seventy-five million, four hundred thirty-four thousand, two hundred forty-nine".