143564061 has 4 divisors (see below), whose sum is σ = 191418752. Its totient is φ = 95709372.

The previous prime is 143564053. The next prime is 143564087. The reversal of 143564061 is 160465341.

143564061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 143564061 - 2³ = 143564053 is a prime.

It is a super-2 number, since 2×143564061² = 41221279221623442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143564011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23927341 + ... + 23927346.

It is an arithmetic number, because the mean of its divisors is an integer number (47854688).

Almost surely, 2^143564061 is an apocalyptic number.

It is an amenable number.

143564061 is a deficient number, since it is larger than the sum of its proper divisors (47854691).

143564061 is an equidigital number, since it uses as much as digits as its factorization.

143564061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47854690.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 143564061 is about 11981.8221068417. The cubic root of 143564061 is about 523.6188167000.

The spelling of 143564061 in words is "one hundred forty-three million, five hundred sixty-four thousand, sixty-one".