143239692 has 12 divisors (see below), whose sum is σ = 334225976. Its totient is φ = 47746560.

The previous prime is 143239687. The next prime is 143239697. The reversal of 143239692 is 296932341.

It is an interprime number because it is at equal distance from previous prime (143239687) and next prime (143239697).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 143239692.

It is not an unprimeable number, because it can be changed into a prime (143239697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5968309 + ... + 5968332.

Almost surely, 2^143239692 is an apocalyptic number.

143239692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143239692 is an abundant number, since it is smaller than the sum of its proper divisors (190986284).

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

143239692 is a wasteful number, since it uses less digits than its factorization.

143239692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936648 (or 11936646 counting only the distinct ones).

The product of its digits is 69984, while the sum is 39.

The square root of 143239692 is about 11968.2785729611. The cubic root of 143239692 is about 523.2241641011.

The spelling of 143239692 in words is "one hundred forty-three million, two hundred thirty-nine thousand, six hundred ninety-two".