145102 has 4 divisors (see below), whose sum is σ = 217656. Its totient is φ = 72550.

The previous prime is 145091. The next prime is 145109. The reversal of 145102 is 201541.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36274 + ... + 36277.

It is an arithmetic number, because the mean of its divisors is an integer number (54414).

2¹⁴⁵¹⁰² is an apocalyptic number.

145102 is a deficient number, since it is larger than the sum of its proper divisors (72554).

145102 is an equidigital number, since it uses as much as digits as its factorization.

145102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72553.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 145102 is about 380.9225643093. The cubic root of 145102 is about 52.5481945953.

Adding to 145102 its reverse (201541), we get a palindrome (346643).

The spelling of 145102 in words is "one hundred forty-five thousand, one hundred two".