1375222493 has 4 divisors (see below), whose sum is σ = 1385116320. Its totient is φ = 1365328668.

The previous prime is 1375222487. The next prime is 1375222547. The reversal of 1375222493 is 3942225731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3942225731 = 733 ⋅5378207.

It is a cyclic number.

It is not a de Polignac number, because 1375222493 - 2¹⁰ = 1375221469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375222483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4946705 + ... + 4946982.

It is an arithmetic number, because the mean of its divisors is an integer number (346279080).

Almost surely, 2^1375222493 is an apocalyptic number.

It is an amenable number.

1375222493 is a deficient number, since it is larger than the sum of its proper divisors (9893827).

1375222493 is an equidigital number, since it uses as much as digits as its factorization.

1375222493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893826.

The product of its digits is 90720, while the sum is 38.

The square root of 1375222493 is about 37083.9924091245. The cubic root of 1375222493 is about 1112.0500202320.

The spelling of 1375222493 in words is "one billion, three hundred seventy-five million, two hundred twenty-two thousand, four hundred ninety-three".