144563091 has 4 divisors (see below), whose sum is σ = 192750792. Its totient is φ = 96375392.

The previous prime is 144563051. The next prime is 144563093. The reversal of 144563091 is 190365441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144563091 - 2¹³ = 144554899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144563093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24093846 + ... + 24093851.

It is an arithmetic number, because the mean of its divisors is an integer number (48187698).

Almost surely, 2^144563091 is an apocalyptic number.

144563091 is a deficient number, since it is larger than the sum of its proper divisors (48187701).

144563091 is an equidigital number, since it uses as much as digits as its factorization.

144563091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48187700.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 144563091 is about 12023.4392334307. The cubic root of 144563091 is about 524.8305920530.

The spelling of 144563091 in words is "one hundred forty-four million, five hundred sixty-three thousand, ninety-one".