143925640 has 16 divisors (see below), whose sum is σ = 323832780. Its totient is φ = 57570240.

The previous prime is 143925619. The next prime is 143925667. The reversal of 143925640 is 46529341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141657604 + 2268036 = 11902^2 + 1506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143925596 and 143925605.

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, 1799031 + ... + 1799110.

Almost surely, 2^143925640 is an apocalyptic number.

143925640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143925640 is an abundant number, since it is smaller than the sum of its proper divisors (179907140).

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

143925640 is a wasteful number, since it uses less digits than its factorization.

143925640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598152 (or 3598148 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 143925640 is about 11996.9012665771. The cubic root of 143925640 is about 524.0580418584.

The spelling of 143925640 in words is "one hundred forty-three million, nine hundred twenty-five thousand, six hundred forty".