143694414 has 24 divisors (see below), whose sum is σ = 315092232. Its totient is φ = 47320560.

The previous prime is 143694403. The next prime is 143694427. The reversal of 143694414 is 414496341.

It is a happy number.

It is a super-2 number, since 2×143694414² = 41296169229606792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46597 + ... + 49584.

It is an arithmetic number, because the mean of its divisors is an integer number (13128843).

Almost surely, 2^143694414 is an apocalyptic number.

143694414 is an abundant number, since it is smaller than the sum of its proper divisors (171397818).

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

143694414 is a wasteful number, since it uses less digits than its factorization.

143694414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96272 (or 96269 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 143694414 is about 11987.2604877011. The cubic root of 143694414 is about 523.7772468704. Note that the first 3 decimals are identical.

The spelling of 143694414 in words is "one hundred forty-three million, six hundred ninety-four thousand, four hundred fourteen".