1355143550 has 24 divisors (see below), whose sum is σ = 2523967176. Its totient is φ = 541326240.

The previous prime is 1355143547. The next prime is 1355143553. The reversal of 1355143550 is 553415531.

It is an interprime number because it is at equal distance from previous prime (1355143547) and next prime (1355143553).

It is a super-2 number, since 2×1355143550² = 3672828082213205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355143553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19949 + ... + 55751.

It is an arithmetic number, because the mean of its divisors is an integer number (105165299).

Almost surely, 2^1355143550 is an apocalyptic number.

1355143550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1355143550 is a deficient number, since it is larger than the sum of its proper divisors (1168823626).

1355143550 is a wasteful number, since it uses less digits than its factorization.

1355143550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36572 (or 36567 counting only the distinct ones).

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

The square root of 1355143550 is about 36812.2744475263. The cubic root of 1355143550 is about 1106.6113003744.

The spelling of 1355143550 in words is "one billion, three hundred fifty-five million, one hundred forty-three thousand, five hundred fifty".