145002134 has 4 divisors (see below), whose sum is σ = 217503204. Its totient is φ = 72501066.

The previous prime is 145002133. The next prime is 145002161. The reversal of 145002134 is 431200541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431200541 = 12197 ⋅35353.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145002131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36250532 + ... + 36250535.

It is an arithmetic number, because the mean of its divisors is an integer number (54375801).

Almost surely, 2^145002134 is an apocalyptic number.

145002134 is a deficient number, since it is larger than the sum of its proper divisors (72501070).

145002134 is an equidigital number, since it uses as much as digits as its factorization.

145002134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72501069.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 145002134 is about 12041.6831879933. The cubic root of 145002134 is about 525.3613645140.

Adding to 145002134 its reverse (431200541), we get a palindrome (576202675).

The spelling of 145002134 in words is "one hundred forty-five million, two thousand, one hundred thirty-four".