145704422 has 4 divisors (see below), whose sum is σ = 218556636. Its totient is φ = 72852210.

The previous prime is 145704421. The next prime is 145704479. The reversal of 145704422 is 224407541.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145704421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36426104 + ... + 36426107.

It is an arithmetic number, because the mean of its divisors is an integer number (54639159).

Almost surely, 2^145704422 is an apocalyptic number.

145704422 is a deficient number, since it is larger than the sum of its proper divisors (72852214).

145704422 is an equidigital number, since it uses as much as digits as its factorization.

145704422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72852213.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 145704422 is about 12070.8086721644. The cubic root of 145704422 is about 526.2081587803.

The spelling of 145704422 in words is "one hundred forty-five million, seven hundred four thousand, four hundred twenty-two".