145625245 has 4 divisors (see below), whose sum is σ = 174750300. Its totient is φ = 116500192.

The previous prime is 145625171. The next prime is 145625287. The reversal of 145625245 is 542526541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542526541 = 151 ⋅3592891.

It can be written as a sum of positive squares in 2 ways, for example, as 94731289 + 50893956 = 9733^2 + 7134^2 .

It is a cyclic number.

It is not a de Polignac number, because 145625245 - 2¹¹ = 145623197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145625245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14562520 + ... + 14562529.

It is an arithmetic number, because the mean of its divisors is an integer number (43687575).

Almost surely, 2^145625245 is an apocalyptic number.

It is an amenable number.

145625245 is a deficient number, since it is larger than the sum of its proper divisors (29125055).

145625245 is an equidigital number, since it uses as much as digits as its factorization.

145625245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29125054.

The product of its digits is 48000, while the sum is 34.

The square root of 145625245 is about 12067.5285373601. The cubic root of 145625245 is about 526.1128262071.

The spelling of 145625245 in words is "one hundred forty-five million, six hundred twenty-five thousand, two hundred forty-five".