1528725 has 48 divisors (see below), whose sum is σ = 2946240. Its totient is φ = 691200.

The previous prime is 1528717. The next prime is 1528733. The reversal of 1528725 is 5278251.

1528725 = T₁₁₀ + T₁₁₁ + ... + T₂₁₈.

It is an interprime number because it is at equal distance from previous prime (1528717) and next prime (1528733).

It is not a de Polignac number, because 1528725 - 2³ = 1528717 is a prime.

It is a Curzon number.

1528725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1528692 and 1528701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13971 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (61380).

2^1528725 is an apocalyptic number.

1528725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1528725 is a deficient number, since it is larger than the sum of its proper divisors (1417515).

1528725 is a wasteful number, since it uses less digits than its factorization.

1528725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 145 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 1528725 is about 1236.4161920648. The cubic root of 1528725 is about 115.1975181516.

The spelling of 1528725 in words is "one million, five hundred twenty-eight thousand, seven hundred twenty-five".