145424002 has 4 divisors (see below), whose sum is σ = 218136006. Its totient is φ = 72712000.

The previous prime is 145423987. The next prime is 145424003. The reversal of 145424002 is 200424541.

It is a happy number.

145424002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 143544361 + 1879641 = 11981^2 + 1371^2 .

It is a super-2 number, since 2×145424002² = 42296280715392008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145424003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36355999 + ... + 36356002.

Almost surely, 2^145424002 is an apocalyptic number.

145424002 is a deficient number, since it is larger than the sum of its proper divisors (72712004).

145424002 is an equidigital number, since it uses as much as digits as its factorization.

145424002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72712003.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 145424002 is about 12059.1874518974. The cubic root of 145424002 is about 525.8703651968.

Adding to 145424002 its reverse (200424541), we get a palindrome (345848543).

The spelling of 145424002 in words is "one hundred forty-five million, four hundred twenty-four thousand, two".