143947925961 has 16 divisors (see below), whose sum is σ = 219354633600. Its totient is φ = 82253927808.

The previous prime is 143947925923. The next prime is 143947925983. The reversal of 143947925961 is 169529749341.

It is not a de Polignac number, because 143947925961 - 2⁹ = 143947925449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143947925895 and 143947925904.

It is not an unprimeable number, because it can be changed into a prime (143947924961) 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, 1362135 + ... + 1464003.

It is an arithmetic number, because the mean of its divisors is an integer number (13709664600).

Almost surely, 2^143947925961 is an apocalyptic number.

It is an amenable number.

143947925961 is a deficient number, since it is larger than the sum of its proper divisors (75406707639).

143947925961 is a wasteful number, since it uses less digits than its factorization.

143947925961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169168.

The product of its digits is 14696640, while the sum is 60.

The spelling of 143947925961 in words is "one hundred forty-three billion, nine hundred forty-seven million, nine hundred twenty-five thousand, nine hundred sixty-one".