145537 has 8 divisors (see below), whose sum is σ = 176256. Its totient is φ = 117312.

The previous prime is 145531. The next prime is 145543. The reversal of 145537 is 735541.

It is an interprime number because it is at equal distance from previous prime (145531) and next prime (145543).

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 145537 - 2¹¹ = 143489 is a prime.

145537 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (145531) 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, 493 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (22032).

2¹⁴⁵⁵³⁷ is an apocalyptic number.

145537 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145537 is a deficient number, since it is larger than the sum of its proper divisors (30719).

145537 is a wasteful number, since it uses less digits than its factorization.

145537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its digits is 2100, while the sum is 25.

The square root of 145537 is about 381.4931192040. The cubic root of 145537 is about 52.6006534638.

It can be divided in two parts, 1455 and 37, that multiplied together give a palindrome (53835).

The spelling of 145537 in words is "one hundred forty-five thousand, five hundred thirty-seven".