1242501 has 8 divisors (see below), whose sum is σ = 1784160. Its totient is φ = 764592.

The previous prime is 1242487. The next prime is 1242503. The reversal of 1242501 is 1052421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1242501 - 2¹⁰ = 1241477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242503) 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 7 ways as a sum of consecutive naturals, for example, 15891 + ... + 15968.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

2^1242501 is an apocalyptic number.

It is an amenable number.

1242501 is a deficient number, since it is larger than the sum of its proper divisors (541659).

1242501 is a wasteful number, since it uses less digits than its factorization.

1242501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31875.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1242501 is about 1114.6752890416. The cubic root of 1242501 is about 107.5058875449.

Subtracting from 1242501 its product of nonzero digits (80), we obtain a palindrome (1242421).

Adding to 1242501 its reverse (1052421), we get a palindrome (2294922).

It can be divided in two parts, 124250 and 1, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 1242501 in words is "one million, two hundred forty-two thousand, five hundred one".