145230402 has 16 divisors (see below), whose sum is σ = 298311552. Its totient is φ = 47101680.

The previous prime is 145230391. The next prime is 145230409. The reversal of 145230402 is 204032541.

It is not an unprimeable number, because it can be changed into a prime (145230409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326874 + ... + 327317.

It is an arithmetic number, because the mean of its divisors is an integer number (18644472).

Almost surely, 2^145230402 is an apocalyptic number.

145230402 is an abundant number, since it is smaller than the sum of its proper divisors (153081150).

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

145230402 is a wasteful number, since it uses less digits than its factorization.

145230402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654233.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 145230402 is about 12051.1577037229. The cubic root of 145230402 is about 525.6369014099.

Adding to 145230402 its reverse (204032541), we get a palindrome (349262943).

The spelling of 145230402 in words is "one hundred forty-five million, two hundred thirty thousand, four hundred two".