1351405553 has 8 divisors (see below), whose sum is σ = 1369123560. Its totient is φ = 1333772800.

The previous prime is 1351405547. The next prime is 1351405577. The reversal of 1351405553 is 3555041531.

It can be written as a sum of positive squares in 4 ways, for example, as 398880784 + 952524769 = 19972^2 + 30863^2 .

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 1351405553 - 2¹⁰ = 1351404529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351405543) 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, 10913 + ... + 53121.

It is an arithmetic number, because the mean of its divisors is an integer number (171140445).

Almost surely, 2^1351405553 is an apocalyptic number.

It is an amenable number.

1351405553 is a deficient number, since it is larger than the sum of its proper divisors (17718007).

1351405553 is a wasteful number, since it uses less digits than its factorization.

1351405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42627.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1351405553 is about 36761.4683194238. The cubic root of 1351405553 is about 1105.5928796294.

The spelling of 1351405553 in words is "one billion, three hundred fifty-one million, four hundred five thousand, five hundred fifty-three".