145741725 has 18 divisors (see below), whose sum is σ = 261040026. Its totient is φ = 77728800.

The previous prime is 145741703. The next prime is 145741747. The reversal of 145741725 is 527147541.

145741725 is a `hidden beast` number, since 14 + 574 + 1 + 72 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (145741703) and next prime (145741747).

It can be written as a sum of positive squares in 3 ways, for example, as 3392964 + 142348761 = 1842^2 + 11931^2 .

It is not a de Polignac number, because 145741725 - 2²⁰ = 144693149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145741725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 323646 + ... + 324095.

Almost surely, 2^145741725 is an apocalyptic number.

145741725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145741725 is a deficient number, since it is larger than the sum of its proper divisors (115298301).

145741725 is a wasteful number, since it uses less digits than its factorization.

145741725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647757 (or 647749 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 145741725 is about 12072.3537473021. The cubic root of 145741725 is about 526.2530612566.

The spelling of 145741725 in words is "one hundred forty-five million, seven hundred forty-one thousand, seven hundred twenty-five".