143490197601 has 15 divisors (see below), whose sum is σ = 214354647331. Its totient is φ = 95657858928.

The previous prime is 143490197561. The next prime is 143490197677. The reversal of 143490197601 is 106791094341.

It is a happy number.

The square root of 143490197601 is 378801.

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

143490197601 is a `hidden beast` number, since 1 + 4 + 34 + 9 + 0 + 1 + 9 + 7 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 142618767201 + 871430400 = 377649^2 + 29520^2 .

It is not a de Polignac number, because 143490197601 - 2¹¹ = 143490195553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143490197801) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3388165 + ... + 3430253.

Almost surely, 2^143490197601 is an apocalyptic number.

143490197601 is the 378801-st square number.

143490197601 is the 189401-st centered octagonal number.

It is an amenable number.

143490197601 is a deficient number, since it is larger than the sum of its proper divisors (70864449730).

143490197601 is an frugal number, since it uses more digits than its factorization.

143490197601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84190 (or 42092 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 143490197601 in words is "one hundred forty-three billion, four hundred ninety million, one hundred ninety-seven thousand, six hundred one".