144870945 has 16 divisors (see below), whose sum is σ = 231964992. Its totient is φ = 77207360.

The previous prime is 144870941. The next prime is 144870949. The reversal of 144870945 is 549078441.

It is an interprime number because it is at equal distance from previous prime (144870941) and next prime (144870949).

It is not a de Polignac number, because 144870945 - 2² = 144870941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144870897 and 144870906.

It is not an unprimeable number, because it can be changed into a prime (144870941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24499 + ... + 29831.

It is an arithmetic number, because the mean of its divisors is an integer number (14497812).

Almost surely, 2^144870945 is an apocalyptic number.

144870945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144870945 is a deficient number, since it is larger than the sum of its proper divisors (87094047).

144870945 is a wasteful number, since it uses less digits than its factorization.

144870945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7152.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 144870945 is about 12036.2346686993. The cubic root of 144870945 is about 525.2028785066.

The spelling of 144870945 in words is "one hundred forty-four million, eight hundred seventy thousand, nine hundred forty-five".