144947925 has 36 divisors (see below), whose sum is σ = 261961284. Its totient is φ = 76608000.

The previous prime is 144947923. The next prime is 144947977. The reversal of 144947925 is 529749441.

It can be written as a sum of positive squares in 6 ways, for example, as 10712529 + 134235396 = 3273^2 + 11586^2 .

It is not a de Polignac number, because 144947925 - 2¹ = 144947923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144947921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22575 + ... + 28275.

Almost surely, 2^144947925 is an apocalyptic number.

144947925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144947925 is a deficient number, since it is larger than the sum of its proper divisors (117013359).

144947925 is a wasteful number, since it uses less digits than its factorization.

144947925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5822 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 144947925 is about 12039.4320879350. The cubic root of 144947925 is about 525.2958876295.

The spelling of 144947925 in words is "one hundred forty-four million, nine hundred forty-seven thousand, nine hundred twenty-five".