143725531420 has 24 divisors (see below), whose sum is σ = 301830941664. Its totient is φ = 57488817216.

The previous prime is 143725531393. The next prime is 143725531423. The reversal of 143725531420 is 24135527341.

It is a super-2 number, since 2×143725531420² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143725531420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143725531423) 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, 1280817 + ... + 1388503.

It is an arithmetic number, because the mean of its divisors is an integer number (12576289236).

Almost surely, 2^143725531420 is an apocalyptic number.

143725531420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143725531420 is an abundant number, since it is smaller than the sum of its proper divisors (158105410244).

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

143725531420 is a wasteful number, since it uses less digits than its factorization.

143725531420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174429 (or 174427 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 143725531420 in words is "one hundred forty-three billion, seven hundred twenty-five million, five hundred thirty-one thousand, four hundred twenty".