1375291458 has 18 divisors (see below), whose sum is σ = 2980139097. Its totient is φ = 458378040.

The previous prime is 1375291451. The next prime is 1375291469. The reversal of 1375291458 is 8541925731.

It can be written as a sum of positive squares in 2 ways, for example, as 1219615929 + 155675529 = 34923^2 + 12477^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=26223.

It is not an unprimeable number, because it can be changed into a prime (1375291451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 152968 + ... + 161708.

Almost surely, 2^1375291458 is an apocalyptic number.

1375291458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1375291458 is an abundant number, since it is smaller than the sum of its proper divisors (1604847639).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375291458 is an frugal number, since it uses more digits than its factorization.

1375291458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17490 (or 8746 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1375291458 is about 37084.9222461097. The cubic root of 1375291458 is about 1112.0686090417.

The spelling of 1375291458 in words is "one billion, three hundred seventy-five million, two hundred ninety-one thousand, four hundred fifty-eight".