1351520053 has 8 divisors (see below), whose sum is σ = 1494821048. Its totient is φ = 1213838784.

The previous prime is 1351520041. The next prime is 1351520063. The reversal of 1351520053 is 3500251531.

It can be written as a sum of positive squares in 4 ways, for example, as 384434449 + 967085604 = 19607^2 + 31098^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1351520053 - 2²⁹ = 814649141 is a prime.

It is a super-2 number, since 2×1351520053² = 3653212907322245618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351520063) 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, 1404426 + ... + 1405387.

It is an arithmetic number, because the mean of its divisors is an integer number (186852631).

Almost surely, 2^1351520053 is an apocalyptic number.

1351520053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1351520053 is a deficient number, since it is larger than the sum of its proper divisors (143300995).

1351520053 is a wasteful number, since it uses less digits than its factorization.

1351520053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809863.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1351520053 is about 36763.0256235800. The cubic root of 1351520053 is about 1105.6241031234.

Adding to 1351520053 its reverse (3500251531), we get a palindrome (4851771584).

The spelling of 1351520053 in words is "one billion, three hundred fifty-one million, five hundred twenty thousand, fifty-three".