145320342 has 32 divisors (see below), whose sum is σ = 295918080. Its totient is φ = 47567520.

The previous prime is 145320319. The next prime is 145320367. The reversal of 145320342 is 243023541.

It is a super-2 number, since 2×145320342² = 42236003597993928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99288 + ... + 100740.

It is an arithmetic number, because the mean of its divisors is an integer number (9247440).

Almost surely, 2^145320342 is an apocalyptic number.

145320342 is an abundant number, since it is smaller than the sum of its proper divisors (150597738).

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

145320342 is a wasteful number, since it uses less digits than its factorization.

145320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 145320342 is about 12054.8887178605. Note that the first 3 decimals coincide. The cubic root of 145320342 is about 525.7453865628.

Adding to 145320342 its reverse (243023541), we get a palindrome (388343883).

The spelling of 145320342 in words is "one hundred forty-five million, three hundred twenty thousand, three hundred forty-two".