145258340 has 24 divisors (see below), whose sum is σ = 318306240. Its totient is φ = 55576928.

The previous prime is 145258339. The next prime is 145258349. The reversal of 145258340 is 43852541.

It is a super-3 number, since 3×145258340³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145258297 and 145258306.

It is not an unprimeable number, because it can be changed into a prime (145258349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 157430 + ... + 158349.

It is an arithmetic number, because the mean of its divisors is an integer number (13262760).

Almost surely, 2^145258340 is an apocalyptic number.

145258340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145258340 is an abundant number, since it is smaller than the sum of its proper divisors (173047900).

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

145258340 is a wasteful number, since it uses less digits than its factorization.

145258340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315811 (or 315809 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 145258340 is about 12052.3167897297. The cubic root of 145258340 is about 525.6706048723.

The spelling of 145258340 in words is "one hundred forty-five million, two hundred fifty-eight thousand, three hundred forty".