144869637 has 8 divisors (see below), whose sum is σ = 210719520. Its totient is φ = 87799760.

The previous prime is 144869633. The next prime is 144869639. The reversal of 144869637 is 736968441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144869637 - 2² = 144869633 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144869633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194962 + ... + 2195027.

It is an arithmetic number, because the mean of its divisors is an integer number (26339940).

Almost surely, 2^144869637 is an apocalyptic number.

It is an amenable number.

144869637 is a deficient number, since it is larger than the sum of its proper divisors (65849883).

144869637 is a wasteful number, since it uses less digits than its factorization.

144869637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390003.

The product of its digits is 870912, while the sum is 48.

The square root of 144869637 is about 12036.1803326471. The cubic root of 144869637 is about 525.2012978643.

The spelling of 144869637 in words is "one hundred forty-four million, eight hundred sixty-nine thousand, six hundred thirty-seven".