143437089661 has 4 divisors (see below), whose sum is σ = 143547173152. Its totient is φ = 143327006172.

The previous prime is 143437089659. The next prime is 143437089701. The reversal of 143437089661 is 166980734341.

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 a cyclic number.

It is not a de Polignac number, because 143437089661 - 2¹ = 143437089659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143437089599 and 143437089608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143437069661) 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, 55039791 + ... + 55042396.

It is an arithmetic number, because the mean of its divisors is an integer number (35886793288).

Almost surely, 2^143437089661 is an apocalyptic number.

It is an amenable number.

143437089661 is a deficient number, since it is larger than the sum of its proper divisors (110083491).

143437089661 is a wasteful number, since it uses less digits than its factorization.

143437089661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110083490.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 143437089661 in words is "one hundred forty-three billion, four hundred thirty-seven million, eighty-nine thousand, six hundred sixty-one".