145371250 has 40 divisors (see below), whose sum is σ = 288554508. Its totient is φ = 54720000.

The previous prime is 145371217. The next prime is 145371253. The reversal of 145371250 is 52173541.

It is a happy number.

It is a Cunningham number, because it is equal to 12057²+1.

It can be written as a sum of positive squares in 10 ways, for example, as 1 + 145371249 = 1^2 + 12057^2 .

It is a super-2 number, since 2×145371250² = 42265600653125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145371253) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 17830 + ... + 24670.

Almost surely, 2^145371250 is an apocalyptic number.

145371250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145371250 is a deficient number, since it is larger than the sum of its proper divisors (143183258).

145371250 is an equidigital number, since it uses as much as digits as its factorization.

145371250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 145371250 is about 12057.0000414697. Note that the first 4 decimals coincide. The cubic root of 145371250 is about 525.8067716862.

The spelling of 145371250 in words is "one hundred forty-five million, three hundred seventy-one thousand, two hundred fifty".