210145422 has 32 divisors (see below), whose sum is σ = 435521952. Its totient is φ = 67544064.

The previous prime is 210145421. The next prime is 210145423. The reversal of 210145422 is 224541012.

It is an interprime number because it is at equal distance from previous prime (210145421) and next prime (210145423).

It is a super-2 number, since 2×210145422² = 88322196775116168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210145421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20898 + ... + 29274.

It is an arithmetic number, because the mean of its divisors is an integer number (13610061).

Almost surely, 2^210145422 is an apocalyptic number.

210145422 is an abundant number, since it is smaller than the sum of its proper divisors (225376530).

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

210145422 is a wasteful number, since it uses less digits than its factorization.

210145422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8532.

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

The square root of 210145422 is about 14496.3934135357. The cubic root of 210145422 is about 594.5293663195.

Adding to 210145422 its reverse (224541012), we get a palindrome (434686434).

The spelling of 210145422 in words is "two hundred ten million, one hundred forty-five thousand, four hundred twenty-two".