144812974849 has 9 divisors (see below), whose sum is σ = 146699708547. Its totient is φ = 142950216864.

The previous prime is 144812974847. The next prime is 144812974883. The reversal of 144812974849 is 948479218441.

It is a happy number.

The square root of 144812974849 is 380543.

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

It can be written as a sum of positive squares in only one way, i.e., 13212353025 + 131600621824 = 114945^2 + 362768^2 .

It is not a de Polignac number, because 144812974849 - 2¹ = 144812974847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144812974841) 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, 30060489 + ... + 30065305.

Almost surely, 2^144812974849 is an apocalyptic number.

144812974849 is the 380543-rd square number.

144812974849 is the 190272-nd centered octagonal number.

It is an amenable number.

144812974849 is a deficient number, since it is larger than the sum of its proper divisors (1886733698).

144812974849 is an frugal number, since it uses more digits than its factorization.

144812974849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792 (or 4896 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The spelling of 144812974849 in words is "one hundred forty-four billion, eight hundred twelve million, nine hundred seventy-four thousand, eight hundred forty-nine".