145314220 has 12 divisors (see below), whose sum is σ = 305159904. Its totient is φ = 58125680.

The previous prime is 145314217. The next prime is 145314263. The reversal of 145314220 is 22413541.

It is a super-2 number, since 2×145314220² = 42232445068416800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145314191 and 145314200.

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, 3632836 + ... + 3632875.

It is an arithmetic number, because the mean of its divisors is an integer number (25429992).

Almost surely, 2^145314220 is an apocalyptic number.

145314220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145314220 is an abundant number, since it is smaller than the sum of its proper divisors (159845684).

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

145314220 is a wasteful number, since it uses less digits than its factorization.

145314220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7265720 (or 7265718 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145314220 is about 12054.6347933067. The cubic root of 145314220 is about 525.7380036586.

Adding to 145314220 its reverse (22413541), we get a palindrome (167727761).

The spelling of 145314220 in words is "one hundred forty-five million, three hundred fourteen thousand, two hundred twenty".