145306338 has 16 divisors (see below), whose sum is σ = 305908320. Its totient is φ = 45886176.

The previous prime is 145306309. The next prime is 145306339. The reversal of 145306338 is 833603541.

It is a super-2 number, since 2×145306338² = 42227863725940488, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145306299 and 145306308.

It is not an unprimeable number, because it can be changed into a prime (145306339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637195 + ... + 637422.

It is an arithmetic number, because the mean of its divisors is an integer number (19119270).

Almost surely, 2^145306338 is an apocalyptic number.

145306338 is an abundant number, since it is smaller than the sum of its proper divisors (160601982).

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

145306338 is a wasteful number, since it uses less digits than its factorization.

145306338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274641.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 145306338 is about 12054.3078606779. The cubic root of 145306338 is about 525.7284979547.

Adding to 145306338 its reverse (833603541), we get a palindrome (978909879).

The spelling of 145306338 in words is "one hundred forty-five million, three hundred six thousand, three hundred thirty-eight".