146450870721 has 45 divisors (see below), whose sum is σ = 221485888569. Its totient is φ = 96437628000.

The previous prime is 146450870677. The next prime is 146450870807. The reversal of 146450870721 is 127078054641.

The square root of 146450870721 is 382689.

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

146450870721 is a `hidden beast` number, since 1 + 4 + 6 + 4 + 508 + 70 + 72 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2476157121 + 143974713600 = 49761^2 + 379440^2 .

It is not a de Polignac number, because 146450870721 - 2¹³ = 146450862529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146450870821) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 347864091 + ... + 347864511.

Almost surely, 2^146450870721 is an apocalyptic number.

146450870721 is the 382689-th square number.

146450870721 is the 191345-th centered octagonal number.

It is an amenable number.

146450870721 is a deficient number, since it is larger than the sum of its proper divisors (75035017848).

146450870721 is an frugal number, since it uses more digits than its factorization.

146450870721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 146450870721 in words is "one hundred forty-six billion, four hundred fifty million, eight hundred seventy thousand, seven hundred twenty-one".