143545211421 has 16 divisors (see below), whose sum is σ = 197703948288. Its totient is φ = 92545902000.

The previous prime is 143545211399. The next prime is 143545211431. The reversal of 143545211421 is 124112545341.

It is not a de Polignac number, because 143545211421 - 2⁶ = 143545211357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143545211431) 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, 396931 + ... + 666816.

It is an arithmetic number, because the mean of its divisors is an integer number (12356496768).

Almost surely, 2^143545211421 is an apocalyptic number.

It is an amenable number.

143545211421 is a deficient number, since it is larger than the sum of its proper divisors (54158736867).

143545211421 is a wasteful number, since it uses less digits than its factorization.

143545211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065232.

The product of its digits is 19200, while the sum is 33.

Adding to 143545211421 its reverse (124112545341), we get a palindrome (267657756762).

The spelling of 143545211421 in words is "one hundred forty-three billion, five hundred forty-five million, two hundred eleven thousand, four hundred twenty-one".