1352400523 has 4 divisors (see below), whose sum is σ = 1377917568. Its totient is φ = 1326883480.

The previous prime is 1352400503. The next prime is 1352400527. The reversal of 1352400523 is 3250042531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3250042531 = 23 ⋅141306197.

It is a cyclic number.

It is not a de Polignac number, because 1352400523 - 2⁹ = 1352400011 is a prime.

It is a super-2 number, since 2×1352400523² = 3657974349221347058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1352400527) 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, 12758443 + ... + 12758548.

It is an arithmetic number, because the mean of its divisors is an integer number (344479392).

Almost surely, 2^1352400523 is an apocalyptic number.

1352400523 is a deficient number, since it is larger than the sum of its proper divisors (25517045).

1352400523 is an equidigital number, since it uses as much as digits as its factorization.

1352400523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25517044.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1352400523 is about 36774.9986131883. The cubic root of 1352400523 is about 1105.8641433493.

The spelling of 1352400523 in words is "one billion, three hundred fifty-two million, four hundred thousand, five hundred twenty-three".