144933139 has 8 divisors (see below), whose sum is σ = 156270240. Its totient is φ = 133622976.

The previous prime is 144933079. The next prime is 144933161. The reversal of 144933139 is 931339441.

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 144933139 - 2¹¹ = 144931091 is a prime.

It is a super-2 number, since 2×144933139² = 42011229560786642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144933098 and 144933107.

It is not an unprimeable number, because it can be changed into a prime (144933739) 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, 5247 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (19533780).

Almost surely, 2^144933139 is an apocalyptic number.

144933139 is a deficient number, since it is larger than the sum of its proper divisors (11337101).

144933139 is a wasteful number, since it uses less digits than its factorization.

144933139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13469.

The product of its digits is 34992, while the sum is 37.

The square root of 144933139 is about 12038.8180067646. The cubic root of 144933139 is about 525.2780253775.

The spelling of 144933139 in words is "one hundred forty-four million, nine hundred thirty-three thousand, one hundred thirty-nine".