1355143750247 has 24 divisors (see below), whose sum is σ = 1646317892736. Its totient is φ = 1110112423728.

The previous prime is 1355143750229. The next prime is 1355143750249. The reversal of 1355143750247 is 7420573415531.

It is not a de Polignac number, because 1355143750247 - 2²² = 1355139555943 is a prime.

It is a super-2 number, since 2×1355143750247² (a number of 25 digits) 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 (1355143750249) 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, 831248 + ... + 1844250.

It is an arithmetic number, because the mean of its divisors is an integer number (68596578864).

Almost surely, 2^{1355143750247} is an apocalyptic number.

1355143750247 is a deficient number, since it is larger than the sum of its proper divisors (291174142489).

1355143750247 is a wasteful number, since it uses less digits than its factorization.

1355143750247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014227 (or 1014220 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 1355143750247 in words is "one trillion, three hundred fifty-five billion, one hundred forty-three million, seven hundred fifty thousand, two hundred forty-seven".