144691346 has 16 divisors (see below), whose sum is σ = 228910560. Its totient is φ = 68402880.

The previous prime is 144691319. The next prime is 144691363. The reversal of 144691346 is 643196441.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17306 + ... + 24266.

It is an arithmetic number, because the mean of its divisors is an integer number (14306910).

Almost surely, 2^144691346 is an apocalyptic number.

144691346 is a deficient number, since it is larger than the sum of its proper divisors (84219214).

144691346 is a wasteful number, since it uses less digits than its factorization.

144691346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7529.

The product of its digits is 62208, while the sum is 38.

The square root of 144691346 is about 12028.7715914802. The cubic root of 144691346 is about 524.9857544132.

The spelling of 144691346 in words is "one hundred forty-four million, six hundred ninety-one thousand, three hundred forty-six".