145040250 has 32 divisors (see below), whose sum is σ = 362022336. Its totient is φ = 38677200.

The previous prime is 145040237. The next prime is 145040267. The reversal of 145040250 is 52040541.

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, 95944 + ... + 97443.

It is an arithmetic number, because the mean of its divisors is an integer number (11313198).

Almost surely, 2^145040250 is an apocalyptic number.

145040250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145040250 is an abundant number, since it is smaller than the sum of its proper divisors (216982086).

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

145040250 is a wasteful number, since it uses less digits than its factorization.

145040250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193407 (or 193397 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 145040250 is about 12043.2657531087. The cubic root of 145040250 is about 525.4073935364.

Adding to 145040250 its reverse (52040541), we get a palindrome (197080791).

The spelling of 145040250 in words is "one hundred forty-five million, forty thousand, two hundred fifty".