146242761889 has 9 divisors (see below), whose sum is σ = 170122245201. Its totient is φ = 125348644260.

The previous prime is 146242761881. The next prime is 146242761901. The reversal of 146242761889 is 988167242641.

The square root of 146242761889 is 382417.

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

It is not a de Polignac number, because 146242761889 - 2³ = 146242761881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146242761881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2649604 + ... + 2704234.

It is an arithmetic number, because the mean of its divisors is an integer number (18902471689).

Almost surely, 2^146242761889 is an apocalyptic number.

146242761889 is the 382417-th square number.

146242761889 is the 191209-th centered octagonal number.

It is an amenable number.

146242761889 is a deficient number, since it is larger than the sum of its proper divisors (23879483312).

146242761889 is an frugal number, since it uses more digits than its factorization.

146242761889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109276 (or 54638 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The spelling of 146242761889 in words is "one hundred forty-six billion, two hundred forty-two million, seven hundred sixty-one thousand, eight hundred eighty-nine".