1522942393 has 6 divisors (see below), whose sum is σ = 1771586106. Its totient is φ = 1305379152.

The previous prime is 1522942381. The next prime is 1522942489. The reversal of 1522942393 is 3932492251.

It can be written as a sum of positive squares in only one way, i.e., 1316818944 + 206123449 = 36288^2 + 14357^2 .

It is not a de Polignac number, because 1522942393 - 2¹⁷ = 1522811321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1522942373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15540180 + ... + 15540277.

It is an arithmetic number, because the mean of its divisors is an integer number (295264351).

Almost surely, 2^1522942393 is an apocalyptic number.

It is an amenable number.

1522942393 is a deficient number, since it is larger than the sum of its proper divisors (248643713).

1522942393 is an equidigital number, since it uses as much as digits as its factorization.

1522942393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31080471 (or 31080464 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 1522942393 is about 39024.8945290055. The cubic root of 1522942393 is about 1150.5208461097.

The spelling of 1522942393 in words is "one billion, five hundred twenty-two million, nine hundred forty-two thousand, three hundred ninety-three".