145254213 has 12 divisors (see below), whose sum is σ = 225951180. Its totient is φ = 89387136.

The previous prime is 145254203. The next prime is 145254227. The reversal of 145254213 is 312452541.

It can be written as a sum of positive squares in 2 ways, for example, as 9345249 + 135908964 = 3057^2 + 11658^2 .

It is not a de Polignac number, because 145254213 - 2⁵ = 145254181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145254203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620628 + ... + 620861.

It is an arithmetic number, because the mean of its divisors is an integer number (18829265).

Almost surely, 2^145254213 is an apocalyptic number.

145254213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145254213 is a deficient number, since it is larger than the sum of its proper divisors (80696967).

145254213 is a wasteful number, since it uses less digits than its factorization.

145254213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241508 (or 1241505 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 145254213 is about 12052.1455766183. The cubic root of 145254213 is about 525.6656264705.

The spelling of 145254213 in words is "one hundred forty-five million, two hundred fifty-four thousand, two hundred thirteen".