142273961897 has 8 divisors (see below), whose sum is σ = 144696041280. Its totient is φ = 139852237840.

The previous prime is 142273961861. The next prime is 142273961899. The reversal of 142273961897 is 798169372241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142273961897 - 2⁶ = 142273961833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142273961899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792572 + ... + 955362.

It is an arithmetic number, because the mean of its divisors is an integer number (18087005160).

Almost surely, 2^142273961897 is an apocalyptic number.

It is an amenable number.

142273961897 is a deficient number, since it is larger than the sum of its proper divisors (2422079383).

142273961897 is a wasteful number, since it uses less digits than its factorization.

142273961897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177663.

The product of its digits is 9144576, while the sum is 59.

The spelling of 142273961897 in words is "one hundred forty-two billion, two hundred seventy-three million, nine hundred sixty-one thousand, eight hundred ninety-seven".