144967897 has 16 divisors (see below), whose sum is σ = 153648000. Its totient is φ = 136571904.

The previous prime is 144967859. The next prime is 144967909. The reversal of 144967897 is 798769441.

It is not a de Polignac number, because 144967897 - 2¹⁵ = 144935129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144967817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330004 + ... + 330442.

It is an arithmetic number, because the mean of its divisors is an integer number (9603000).

Almost surely, 2^144967897 is an apocalyptic number.

It is an amenable number.

144967897 is a deficient number, since it is larger than the sum of its proper divisors (8680103).

144967897 is a wasteful number, since it uses less digits than its factorization.

144967897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its digits is 3048192, while the sum is 55.

The square root of 144967897 is about 12040.2615004825. The cubic root of 144967897 is about 525.3200129091.

The spelling of 144967897 in words is "one hundred forty-four million, nine hundred sixty-seven thousand, eight hundred ninety-seven".