144969806 has 16 divisors (see below), whose sum is σ = 220282416. Its totient is φ = 71547456.

The previous prime is 144969793. The next prime is 144969821. The reversal of 144969806 is 608969441.

It is a happy number.

It is a super-3 number, since 3×144969806³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66770 + ... + 68906.

It is an arithmetic number, because the mean of its divisors is an integer number (13767651).

Almost surely, 2^144969806 is an apocalyptic number.

144969806 is a deficient number, since it is larger than the sum of its proper divisors (75312610).

144969806 is a wasteful number, since it uses less digits than its factorization.

144969806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 144969806 is about 12040.3407759083. The cubic root of 144969806 is about 525.3223187794.

The spelling of 144969806 in words is "one hundred forty-four million, nine hundred sixty-nine thousand, eight hundred six".