1607121 has 10 divisors (see below), whose sum is σ = 2400882. Its totient is φ = 1071360.

The previous prime is 1607113. The next prime is 1607131. The reversal of 1607121 is 1217061.

It can be written as a sum of positive squares in only one way, i.e., 876096 + 731025 = 936^2 + 855^2 .

It is not a de Polignac number, because 1607121 - 2³ = 1607113 is a prime.

1607121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1607094 and 1607103.

It is not an unprimeable number, because it can be changed into a prime (1607131) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9840 + ... + 10001.

2^1607121 is an apocalyptic number.

It is an amenable number.

1607121 is a deficient number, since it is larger than the sum of its proper divisors (793761).

1607121 is an equidigital number, since it uses as much as digits as its factorization.

1607121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19853 (or 19844 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1607121 is about 1267.7227614901. The cubic root of 1607121 is about 117.1339688307.

It can be divided in two parts, 1607 and 121, that added together give a cube (1728 = 12³).

The spelling of 1607121 in words is "one million, six hundred seven thousand, one hundred twenty-one".