143979490 has 16 divisors (see below), whose sum is σ = 268100280. Its totient is φ = 55605760.

The previous prime is 143979457. The next prime is 143979491. The reversal of 143979490 is 94979341.

143979490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 136866601 + 7112889 = 11699^2 + 2667^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143979490.

It is not an unprimeable number, because it can be changed into a prime (143979491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247951 + ... + 248530.

Almost surely, 2^143979490 is an apocalyptic number.

143979490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143979490 is a deficient number, since it is larger than the sum of its proper divisors (124120790).

143979490 is a wasteful number, since it uses less digits than its factorization.

143979490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496517.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 143979490 is about 11999.1453862348. The cubic root of 143979490 is about 524.1233927500.

The spelling of 143979490 in words is "one hundred forty-three million, nine hundred seventy-nine thousand, four hundred ninety".