144620811 has 12 divisors (see below), whose sum is σ = 211759288. Its totient is φ = 95092704.

The previous prime is 144620809. The next prime is 144620843. The reversal of 144620811 is 118026441.

It is a happy number.

144620811 is a `hidden beast` number, since 1 + 446 + 208 + 11 = 666.

It is not a de Polignac number, because 144620811 - 2¹ = 144620809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144620881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109405 + ... + 110718.

Almost surely, 2^144620811 is an apocalyptic number.

144620811 is a deficient number, since it is larger than the sum of its proper divisors (67138477).

144620811 is a wasteful number, since it uses less digits than its factorization.

144620811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220202 (or 220199 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 144620811 is about 12025.8393054290. The cubic root of 144620811 is about 524.9004328188.

The spelling of 144620811 in words is "one hundred forty-four million, six hundred twenty thousand, eight hundred eleven".