1375450402 has 4 divisors (see below), whose sum is σ = 2063175606. Its totient is φ = 687725200.

The previous prime is 1375450381. The next prime is 1375450429. The reversal of 1375450402 is 2040545731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1180540881 + 194909521 = 34359^2 + 13961^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 343862599 + ... + 343862602.

Almost surely, 2^1375450402 is an apocalyptic number.

1375450402 is a deficient number, since it is larger than the sum of its proper divisors (687725204).

1375450402 is an equidigital number, since it uses as much as digits as its factorization.

1375450402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687725203.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1375450402 is about 37087.0651575452. The cubic root of 1375450402 is about 1112.1114484032. Note that the first 3 decimals are identical.

The spelling of 1375450402 in words is "one billion, three hundred seventy-five million, four hundred fifty thousand, four hundred two".