145540022 has 8 divisors (see below), whose sum is σ = 221889072. Its totient is φ = 71577000.

The previous prime is 145540007. The next prime is 145540033. The reversal of 145540022 is 220045541.

It is a happy number.

145540022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145540022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596354 + ... + 596597.

It is an arithmetic number, because the mean of its divisors is an integer number (27736134).

Almost surely, 2^145540022 is an apocalyptic number.

145540022 is a deficient number, since it is larger than the sum of its proper divisors (76349050).

145540022 is a wasteful number, since it uses less digits than its factorization.

145540022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193014.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 145540022 is about 12063.9969330235. The cubic root of 145540022 is about 526.0101753635.

Adding to 145540022 its reverse (220045541), we get a palindrome (365585563).

The spelling of 145540022 in words is "one hundred forty-five million, five hundred forty thousand, twenty-two".