145055253 has 32 divisors (see below), whose sum is σ = 238371840. Its totient is φ = 76602240.

The previous prime is 145055243. The next prime is 145055269. The reversal of 145055253 is 352550541.

It is a happy number.

It is not a de Polignac number, because 145055253 - 2¹⁴ = 145038869 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145055253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145055233) 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 31 ways as a sum of consecutive naturals, for example, 11926 + ... + 20792.

It is an arithmetic number, because the mean of its divisors is an integer number (7449120).

Almost surely, 2^145055253 is an apocalyptic number.

It is an amenable number.

145055253 is a deficient number, since it is larger than the sum of its proper divisors (93316587).

145055253 is a wasteful number, since it uses less digits than its factorization.

145055253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8937.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 145055253 is about 12043.8886162236. Note that the first 3 decimals coincide. The cubic root of 145055253 is about 525.4255090029.

The spelling of 145055253 in words is "one hundred forty-five million, fifty-five thousand, two hundred fifty-three".