143869146 has 16 divisors (see below), whose sum is σ = 291791808. Its totient is φ = 47280800.

The previous prime is 143869133. The next prime is 143869177. The reversal of 143869146 is 641968341.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143869098 and 143869107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168435 + ... + 169286.

It is an arithmetic number, because the mean of its divisors is an integer number (18236988).

Almost surely, 2^143869146 is an apocalyptic number.

143869146 is an abundant number, since it is smaller than the sum of its proper divisors (147922662).

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

143869146 is a wasteful number, since it uses less digits than its factorization.

143869146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337797.

The product of its digits is 124416, while the sum is 42.

The square root of 143869146 is about 11994.5465108107. The cubic root of 143869146 is about 523.9894647572.

It can be divided in two parts, 14386 and 9146, that added together give a palindrome (23532).

The spelling of 143869146 in words is "one hundred forty-three million, eight hundred sixty-nine thousand, one hundred forty-six".