144540624 has 20 divisors (see below), whose sum is σ = 373396736. Its totient is φ = 48180192.

The previous prime is 144540623. The next prime is 144540653. The reversal of 144540624 is 426045441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 144540591 and 144540600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144540623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505584 + ... + 1505679.

Almost surely, 2^144540624 is an apocalyptic number.

It is an amenable number.

144540624 is an abundant number, since it is smaller than the sum of its proper divisors (228856112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144540624 is a wasteful number, since it uses less digits than its factorization.

144540624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011274 (or 3011268 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 144540624 is about 12022.5048970670. The cubic root of 144540624 is about 524.8034021257.

The spelling of 144540624 in words is "one hundred forty-four million, five hundred forty thousand, six hundred twenty-four".