143702493 has 16 divisors (see below), whose sum is σ = 211181376. Its totient is φ = 86192640.

The previous prime is 143702483. The next prime is 143702527. The reversal of 143702493 is 394207341.

143702493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143702493 - 2¹² = 143698397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143702423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19246 + ... + 25647.

It is an arithmetic number, because the mean of its divisors is an integer number (13198836).

Almost surely, 2^143702493 is an apocalyptic number.

It is an amenable number.

143702493 is a deficient number, since it is larger than the sum of its proper divisors (67478883).

143702493 is a wasteful number, since it uses less digits than its factorization.

143702493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45004.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 143702493 is about 11987.5974657143. The cubic root of 143702493 is about 523.7870628796.

The spelling of 143702493 in words is "one hundred forty-three million, seven hundred two thousand, four hundred ninety-three".