1375450493 has 8 divisors (see below), whose sum is σ = 1415055096. Its totient is φ = 1336134400.

The previous prime is 1375450481. The next prime is 1375450507. The reversal of 1375450493 is 3940545731.

It can be written as a sum of positive squares in 4 ways, for example, as 375769 + 1375074724 = 613^2 + 37082^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1375450493 - 2⁴ = 1375450477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375450493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375450693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62438 + ... + 81543.

It is an arithmetic number, because the mean of its divisors is an integer number (176881887).

Almost surely, 2^1375450493 is an apocalyptic number.

It is an amenable number.

1375450493 is a deficient number, since it is larger than the sum of its proper divisors (39604603).

1375450493 is a wasteful number, since it uses less digits than its factorization.

1375450493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144255.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 1375450493 is about 37087.0663843880. The cubic root of 1375450493 is about 1112.1114729291. Note that the first 3 decimals are identical.

The spelling of 1375450493 in words is "one billion, three hundred seventy-five million, four hundred fifty thousand, four hundred ninety-three".