143401541 has 4 divisors (see below), whose sum is σ = 143462592. Its totient is φ = 143340492.

The previous prime is 143401537. The next prime is 143401543. The reversal of 143401541 is 145104341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 145104341 = 2393 ⋅60637.

It is a cyclic number.

It is not a de Polignac number, because 143401541 - 2² = 143401537 is a prime.

It is a super-2 number, since 2×143401541² = 41128003922349362, 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 (143401543) 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, 26855 + ... + 31748.

It is an arithmetic number, because the mean of its divisors is an integer number (35865648).

Almost surely, 2^143401541 is an apocalyptic number.

It is an amenable number.

143401541 is a deficient number, since it is larger than the sum of its proper divisors (61051).

143401541 is an equidigital number, since it uses as much as digits as its factorization.

143401541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61050.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 143401541 is about 11975.0382462855. The cubic root of 143401541 is about 523.4211565955.

Adding to 143401541 its reverse (145104341), we get a palindrome (288505882).

The spelling of 143401541 in words is "one hundred forty-three million, four hundred one thousand, five hundred forty-one".