1375725 has 48 divisors (see below), whose sum is σ = 2624832. Its totient is φ = 629760.

The previous prime is 1375723. The next prime is 1375727. The reversal of 1375725 is 5275731.

It is an interprime number because it is at equal distance from previous prime (1375723) and next prime (1375727).

It is not a de Polignac number, because 1375725 - 2¹ = 1375723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1375692 and 1375701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16534 + ... + 16616.

It is an arithmetic number, because the mean of its divisors is an integer number (54684).

2^1375725 is an apocalyptic number.

1375725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1375725 is a deficient number, since it is larger than the sum of its proper divisors (1249107).

1375725 is a wasteful number, since it uses less digits than its factorization.

1375725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 121 counting only the distinct ones).

The product of its digits is 7350, while the sum is 30.

The square root of 1375725 is about 1172.9130402549. The cubic root of 1375725 is about 111.2185451619.

The spelling of 1375725 in words is "one million, three hundred seventy-five thousand, seven hundred twenty-five".