1351503223 has 8 divisors (see below), whose sum is σ = 1545032192. Its totient is φ = 1158088536.

The previous prime is 1351503169. The next prime is 1351503229. The reversal of 1351503223 is 3223051531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351503223 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 (1351503229) 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, 1515 + ... + 52012.

It is an arithmetic number, because the mean of its divisors is an integer number (193129024).

Almost surely, 2^1351503223 is an apocalyptic number.

1351503223 is a deficient number, since it is larger than the sum of its proper divisors (193528969).

1351503223 is an equidigital number, since it uses as much as digits as its factorization.

1351503223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57141.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1351503223 is about 36762.7967244060. The cubic root of 1351503223 is about 1105.6195137894.

Adding to 1351503223 its reverse (3223051531), we get a palindrome (4574554754).

The spelling of 1351503223 in words is "one billion, three hundred fifty-one million, five hundred three thousand, two hundred twenty-three".