144536073 has 12 divisors (see below), whose sum is σ = 211827504. Its totient is φ = 87597400.

The previous prime is 144536069. The next prime is 144536081. The reversal of 144536073 is 370635441.

It is not a de Polignac number, because 144536073 - 2² = 144536069 is a prime.

It is a super-2 number, since 2×144536073² = 41781352796522658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (144536573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198723 + ... + 199448.

It is an arithmetic number, because the mean of its divisors is an integer number (17652292).

Almost surely, 2^144536073 is an apocalyptic number.

It is an amenable number.

144536073 is a deficient number, since it is larger than the sum of its proper divisors (67291431).

144536073 is a wasteful number, since it uses less digits than its factorization.

144536073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398196 (or 398185 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 144536073 is about 12022.3156255357. The cubic root of 144536073 is about 524.7978940886.

The spelling of 144536073 in words is "one hundred forty-four million, five hundred thirty-six thousand, seventy-three".