143513856 has 126 divisors (see below), whose sum is σ = 430062710. Its totient is φ = 47775744.

The previous prime is 143513827. The next prime is 143513863. The reversal of 143513856 is 658315341.

143513856 = T₄₇₈ + T₄₇₉ + ... + T₉₈₉.

It can be written as a sum of positive squares in only one way, i.e., 116640000 + 26873856 = 10800^2 + 5184^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 143513856.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 186240 + ... + 187008.

Almost surely, 2^143513856 is an apocalyptic number.

143513856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143513856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215031355).

143513856 is an abundant number, since it is smaller than the sum of its proper divisors (286548854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143513856 is an frugal number, since it uses more digits than its factorization.

143513856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 774 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 143513856 is about 11979.7268750168. The cubic root of 143513856 is about 523.5577722959.

The spelling of 143513856 in words is "one hundred forty-three million, five hundred thirteen thousand, eight hundred fifty-six".