1351213533 has 24 divisors (see below), whose sum is σ = 2078975808. Its totient is φ = 842727552.

The previous prime is 1351213511. The next prime is 1351213573. The reversal of 1351213533 is 3353121531.

1351213533 is a `hidden beast` number, since 1 + 3 + 5 + 121 + 3 + 533 = 666.

It is not a de Polignac number, because 1351213533 - 2⁸ = 1351213277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1351213497 and 1351213506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351213573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891 + ... + 51992.

It is an arithmetic number, because the mean of its divisors is an integer number (86623992).

Almost surely, 2^1351213533 is an apocalyptic number.

It is an amenable number.

1351213533 is a deficient number, since it is larger than the sum of its proper divisors (727762275).

1351213533 is a wasteful number, since it uses less digits than its factorization.

1351213533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53073 (or 53070 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 1351213533 is about 36758.8565246527. The cubic root of 1351213533 is about 1105.5405129163.

The spelling of 1351213533 in words is "one billion, three hundred fifty-one million, two hundred thirteen thousand, five hundred thirty-three".