145225402 has 8 divisors (see below), whose sum is σ = 248957856. Its totient is φ = 62239452.

The previous prime is 145225391. The next prime is 145225433. The reversal of 145225402 is 204522541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5186608 + ... + 5186635.

It is an arithmetic number, because the mean of its divisors is an integer number (31119732).

Almost surely, 2^145225402 is an apocalyptic number.

145225402 is a deficient number, since it is larger than the sum of its proper divisors (103732454).

145225402 is a wasteful number, since it uses less digits than its factorization.

145225402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373252.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 145225402 is about 12050.9502529884. The cubic root of 145225402 is about 525.6308691222.

Adding to 145225402 its reverse (204522541), we get a palindrome (349747943).

The spelling of 145225402 in words is "one hundred forty-five million, two hundred twenty-five thousand, four hundred two".