143978064 has 20 divisors (see below), whose sum is σ = 371943456. Its totient is φ = 47992672.

The previous prime is 143978057. The next prime is 143978071. The reversal of 143978064 is 460879341.

It is an interprime number because it is at equal distance from previous prime (143978057) and next prime (143978071).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499724 + ... + 1499819.

Almost surely, 2^143978064 is an apocalyptic number.

It is an amenable number.

143978064 is an abundant number, since it is smaller than the sum of its proper divisors (227965392).

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

143978064 is a wasteful number, since it uses less digits than its factorization.

143978064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999554 (or 2999548 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 143978064 is about 11999.0859651892. The cubic root of 143978064 is about 524.1216624054.

The spelling of 143978064 in words is "one hundred forty-three million, nine hundred seventy-eight thousand, sixty-four".