142097589549 has 24 divisors (see below), whose sum is σ = 220193806560. Its totient is φ = 91465110576.

The previous prime is 142097589523. The next prime is 142097589551. The reversal of 142097589549 is 945985790241.

142097589549 is a `hidden beast` number, since 1 + 4 + 2 + 0 + 9 + 7 + 5 + 89 + 549 = 666.

It is not a de Polignac number, because 142097589549 - 2¹⁹ = 142097065261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142097589509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10075087 + ... + 10089180.

It is an arithmetic number, because the mean of its divisors is an integer number (9174741940).

Almost surely, 2^142097589549 is an apocalyptic number.

It is an amenable number.

142097589549 is a deficient number, since it is larger than the sum of its proper divisors (78096217011).

142097589549 is an equidigital number, since it uses as much as digits as its factorization.

142097589549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20164311 (or 20164299 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 142097589549 in words is "one hundred forty-two billion, ninety-seven million, five hundred eighty-nine thousand, five hundred forty-nine".