145615236 has 48 divisors (see below), whose sum is σ = 369715584. Its totient is φ = 44338176.

The previous prime is 145615213. The next prime is 145615237. The reversal of 145615236 is 632516541.

It is a junction number, because it is equal to n+sod(n) for n = 145615197 and 145615206.

It is not an unprimeable number, because it can be changed into a prime (145615237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10321 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (7702408).

Almost surely, 2^145615236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145615236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184857792).

145615236 is an abundant number, since it is smaller than the sum of its proper divisors (224100348).

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

145615236 is a wasteful number, since it uses less digits than its factorization.

145615236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740 (or 9738 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 145615236 is about 12067.1138222858. The cubic root of 145615236 is about 526.1007724730.

The spelling of 145615236 in words is "one hundred forty-five million, six hundred fifteen thousand, two hundred thirty-six".