143769234 has 24 divisors (see below), whose sum is σ = 334484208. Its totient is φ = 41076840.

The previous prime is 143769233. The next prime is 143769239. The reversal of 143769234 is 432967341.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143769192 and 143769201.

It is not an unprimeable number, because it can be changed into a prime (143769233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244212 + ... + 244799.

It is an arithmetic number, because the mean of its divisors is an integer number (13936842).

Almost surely, 2^143769234 is an apocalyptic number.

143769234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

143769234 is an abundant number, since it is smaller than the sum of its proper divisors (190714974).

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

143769234 is a wasteful number, since it uses less digits than its factorization.

143769234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489030 (or 489023 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 143769234 is about 11990.3808947006. The cubic root of 143769234 is about 523.8681393246.

The spelling of 143769234 in words is "one hundred forty-three million, seven hundred sixty-nine thousand, two hundred thirty-four".