1351225503 has 16 divisors (see below), whose sum is σ = 2005768800. Its totient is φ = 899038080.

The previous prime is 1351225487. The next prime is 1351225511. The reversal of 1351225503 is 3055221531.

It is a happy number.

1351225503 is a `hidden beast` number, since 1 + 35 + 122 + 5 + 503 = 666.

It is not a de Polignac number, because 1351225503 - 2⁴ = 1351225487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351225543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35418 + ... + 62903.

It is an arithmetic number, because the mean of its divisors is an integer number (125360550).

Almost surely, 2^1351225503 is an apocalyptic number.

1351225503 is a deficient number, since it is larger than the sum of its proper divisors (654543297).

1351225503 is an equidigital number, since it uses as much as digits as its factorization.

1351225503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98839 (or 98833 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1351225503 is about 36759.0193421968. The cubic root of 1351225503 is about 1105.5437774585.

It can be divided in two parts, 135122 and 5503, that added together give a square (140625 = 375²).

The spelling of 1351225503 in words is "one billion, three hundred fifty-one million, two hundred twenty-five thousand, five hundred three".