143155740 has 192 divisors, whose sum is σ = 499451904. Its totient is φ = 29832192.

The previous prime is 143155739. The next prime is 143155757. The reversal of 143155740 is 47551341.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 143155698 and 143155707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 857137 + ... + 857303.

It is an arithmetic number, because the mean of its divisors is an integer number (2601312).

Almost surely, 2^143155740 is an apocalyptic number.

143155740 is a gapful number since it is divisible by the number (10) 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 143155740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249725952).

143155740 is an abundant number, since it is smaller than the sum of its proper divisors (356296164).

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

143155740 is a wasteful number, since it uses less digits than its factorization.

143155740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 143155740 is about 11964.7707876081. The cubic root of 143155740 is about 523.1219245175.

The spelling of 143155740 in words is "one hundred forty-three million, one hundred fifty-five thousand, seven hundred forty".