143971494 has 16 divisors (see below), whose sum is σ = 288475968. Its totient is φ = 47901672.

The previous prime is 143971469. The next prime is 143971501. The reversal of 143971494 is 494179341.

It is a congruent number.

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, 18652 + ... + 25215.

It is an arithmetic number, because the mean of its divisors is an integer number (18029748).

Almost surely, 2^143971494 is an apocalyptic number.

143971494 is an abundant number, since it is smaller than the sum of its proper divisors (144504474).

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

143971494 is a wasteful number, since it uses less digits than its factorization.

143971494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44419.

The product of its digits is 108864, while the sum is 42.

The square root of 143971494 is about 11998.8121912129. The cubic root of 143971494 is about 524.1136900527.

The spelling of 143971494 in words is "one hundred forty-three million, nine hundred seventy-one thousand, four hundred ninety-four".