143564540 has 48 divisors (see below), whose sum is σ = 345257472. Its totient is φ = 49121856.

The previous prime is 143564527. The next prime is 143564549. The reversal of 143564540 is 45465341.

It is a super-2 number, since 2×143564540² = 41221554290823200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143564497 and 143564506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143564549) 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, 109529 + ... + 110831.

It is an arithmetic number, because the mean of its divisors is an integer number (7192864).

Almost surely, 2^143564540 is an apocalyptic number.

143564540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143564540 is an abundant number, since it is smaller than the sum of its proper divisors (201692932).

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

143564540 is a wasteful number, since it uses less digits than its factorization.

143564540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 2104 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 143564540 is about 11981.8420954376. The cubic root of 143564540 is about 523.6193990490.

The spelling of 143564540 in words is "one hundred forty-three million, five hundred sixty-four thousand, five hundred forty".