146448261 has 6 divisors (see below), whose sum is σ = 211536390. Its totient is φ = 97632168.

The previous prime is 146448233. The next prime is 146448277. The reversal of 146448261 is 162844641.

It is a happy number.

146448261 is a `hidden beast` number, since 1 + 4 + 644 + 8 + 2 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 105884100 + 40564161 = 10290^2 + 6369^2 .

It is not a de Polignac number, because 146448261 - 2¹⁰ = 146447237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146448361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8136006 + ... + 8136023.

It is an arithmetic number, because the mean of its divisors is an integer number (35256065).

Almost surely, 2^146448261 is an apocalyptic number.

It is an amenable number.

146448261 is a deficient number, since it is larger than the sum of its proper divisors (65088129).

146448261 is a wasteful number, since it uses less digits than its factorization.

146448261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16272035 (or 16272032 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 146448261 is about 12101.5809297794. The cubic root of 146448261 is about 527.1020917520.

The spelling of 146448261 in words is "one hundred forty-six million, four hundred forty-eight thousand, two hundred sixty-one".