145144002 has 64 divisors (see below), whose sum is σ = 314565120. Its totient is φ = 44509824.

The previous prime is 145144001. The next prime is 145144003. The reversal of 145144002 is 200441541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145144001) and next prime (145144003).

It is a self number, because there is not a number n which added to its sum of digits gives 145144002.

It is not an unprimeable number, because it can be changed into a prime (145144001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890373 + ... + 890535.

It is an arithmetic number, because the mean of its divisors is an integer number (4915080).

Almost surely, 2^145144002 is an apocalyptic number.

145144002 is an abundant number, since it is smaller than the sum of its proper divisors (169421118).

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

145144002 is a wasteful number, since it uses less digits than its factorization.

145144002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 145144002 is about 12047.5724525732. The cubic root of 145144002 is about 525.5326439984.

Adding to 145144002 its reverse (200441541), we get a palindrome (345585543).

The spelling of 145144002 in words is "one hundred forty-five million, one hundred forty-four thousand, two".