145307322 has 48 divisors (see below), whose sum is σ = 324222912. Its totient is φ = 47013120.

The previous prime is 145307317. The next prime is 145307341. The reversal of 145307322 is 223703541.

145307322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145307322² = 42228435653623368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84778 + ... + 86474.

It is an arithmetic number, because the mean of its divisors is an integer number (6754644).

Almost surely, 2^145307322 is an apocalyptic number.

145307322 is an abundant number, since it is smaller than the sum of its proper divisors (178915590).

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

145307322 is a wasteful number, since it uses less digits than its factorization.

145307322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1840 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 145307322 is about 12054.3486758929. The cubic root of 145307322 is about 525.7296846790.

The spelling of 145307322 in words is "one hundred forty-five million, three hundred seven thousand, three hundred twenty-two".