145213210 has 16 divisors (see below), whose sum is σ = 261784296. Its totient is φ = 57996288.

The previous prime is 145213199. The next prime is 145213291. The reversal of 145213210 is 12312541.

145213210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 127396369 + 17816841 = 11287^2 + 4221^2 .

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, 4059 + ... + 17518.

Almost surely, 2^145213210 is an apocalyptic number.

145213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145213210 is a deficient number, since it is larger than the sum of its proper divisors (116571086).

145213210 is a wasteful number, since it uses less digits than its factorization.

145213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22257.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145213210 is about 12050.4443901460. Note that the first 3 decimals coincide. The cubic root of 145213210 is about 525.6161594117.

Adding to 145213210 its reverse (12312541), we get a palindrome (157525751).

The spelling of 145213210 in words is "one hundred forty-five million, two hundred thirteen thousand, two hundred ten".