146691298009 has 27 divisors (see below), whose sum is σ = 155779613821. Its totient is φ = 138126201920.

The previous prime is 146691298001. The next prime is 146691298051. The reversal of 146691298009 is 900892196641.

The square root of 146691298009 is 383003.

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

It can be written as a sum of positive squares in 4 ways, for example, as 6021294409 + 140670003600 = 77597^2 + 375060^2 .

It is not a de Polignac number, because 146691298009 - 2³ = 146691298001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146691298001) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 522032949 + ... + 522033229.

Almost surely, 2^146691298009 is an apocalyptic number.

146691298009 is the 383003-rd square number.

146691298009 is the 191502-nd centered octagonal number.

It is an amenable number.

146691298009 is a deficient number, since it is larger than the sum of its proper divisors (9088315812).

146691298009 is an frugal number, since it uses more digits than its factorization.

146691298009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 55.

The spelling of 146691298009 in words is "one hundred forty-six billion, six hundred ninety-one million, two hundred ninety-eight thousand, nine".