145142210 has 16 divisors (see below), whose sum is σ = 262184256. Its totient is φ = 57850608.

The previous prime is 145142203. The next prime is 145142293. The reversal of 145142210 is 12241541.

It is a happy number.

It is a super-2 number, since 2×145142210² = 42132522247368200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22814 + ... + 28473.

It is an arithmetic number, because the mean of its divisors is an integer number (16386516).

Almost surely, 2^145142210 is an apocalyptic number.

145142210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145142210 is a deficient number, since it is larger than the sum of its proper divisors (117042046).

145142210 is a wasteful number, since it uses less digits than its factorization.

145142210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51577.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 145142210 is about 12047.4980805145. The cubic root of 145142210 is about 525.5304811846.

Adding to 145142210 its reverse (12241541), we get a palindrome (157383751).

The spelling of 145142210 in words is "one hundred forty-five million, one hundred forty-two thousand, two hundred ten".