145400322 has 16 divisors (see below), whose sum is σ = 291436992. Its totient is φ = 48360720.

The previous prime is 145400317. The next prime is 145400351. The reversal of 145400322 is 223004541.

It is a super-2 number, since 2×145400322² = 42282507275407368, 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, 23518 + ... + 29049.

It is an arithmetic number, because the mean of its divisors is an integer number (18214812).

Almost surely, 2^145400322 is an apocalyptic number.

145400322 is an abundant number, since it is smaller than the sum of its proper divisors (146036670).

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

145400322 is a wasteful number, since it uses less digits than its factorization.

145400322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53033.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 145400322 is about 12058.2055878974. The cubic root of 145400322 is about 525.8418204219.

Adding to 145400322 its reverse (223004541), we get a palindrome (368404863).

The spelling of 145400322 in words is "one hundred forty-five million, four hundred thousand, three hundred twenty-two".