145203340 has 24 divisors (see below), whose sum is σ = 305281872. Its totient is φ = 58013760.

The previous prime is 145203337. The next prime is 145203353. The reversal of 145203340 is 43302541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15682 + ... + 23158.

It is an arithmetic number, because the mean of its divisors is an integer number (12720078).

Almost surely, 2^145203340 is an apocalyptic number.

145203340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145203340 is an abundant number, since it is smaller than the sum of its proper divisors (160078532).

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

145203340 is a wasteful number, since it uses less digits than its factorization.

145203340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457 (or 8455 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 145203340 is about 12050.0348547214. The cubic root of 145203340 is about 525.6042506029.

Adding to 145203340 its reverse (43302541), we get a palindrome (188505881).

The spelling of 145203340 in words is "one hundred forty-five million, two hundred three thousand, three hundred forty".