143905663801 has 27 divisors (see below), whose sum is σ = 151694440911. Its totient is φ = 136511013744.

The previous prime is 143905663787. The next prime is 143905663829. The reversal of 143905663801 is 108366509341.

The square root of 143905663801 is 379349.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 75460639401 + 68445024400 = 274701^2 + 261620^2 .

It is not a de Polignac number, because 143905663801 - 2¹³ = 143905655609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143905663841) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1133115400 + ... + 1133115526.

Almost surely, 2^143905663801 is an apocalyptic number.

143905663801 is the 379349-th square number.

143905663801 is the 189675-th centered octagonal number.

It is an amenable number.

143905663801 is a deficient number, since it is larger than the sum of its proper divisors (7788777110).

143905663801 is an frugal number, since it uses more digits than its factorization.

143905663801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 143905663801 in words is "one hundred forty-three billion, nine hundred five million, six hundred sixty-three thousand, eight hundred one".