1137521 has 24 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 823680.

The previous prime is 1137503. The next prime is 1137527. The reversal of 1137521 is 1257311.

It is not a de Polignac number, because 1137521 - 2⁶ = 1137457 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1137493 and 1137502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14360 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2^1137521 is an apocalyptic number.

1137521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1137521 is a deficient number, since it is larger than the sum of its proper divisors (394639).

1137521 is a wasteful number, since it uses less digits than its factorization.

1137521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 114 counting only the distinct ones).

The product of its digits is 210, while the sum is 20.

The square root of 1137521 is about 1066.5462952915. The cubic root of 1137521 is about 104.3886163168.

Subtracting from 1137521 its product of digits (210), we obtain a palindrome (1137311).

The spelling of 1137521 in words is "one million, one hundred thirty-seven thousand, five hundred twenty-one".