1242507 has 8 divisors (see below), whose sum is σ = 1893376. Its totient is φ = 709992.

The previous prime is 1242503. The next prime is 1242517. The reversal of 1242507 is 7052421.

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

It is not a de Polignac number, because 1242507 - 2² = 1242503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 59167 = 1242507 / (1 + 2 + 4 + 2 + 5 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29563 + ... + 29604.

It is an arithmetic number, because the mean of its divisors is an integer number (236672).

2^1242507 is an apocalyptic number.

1242507 is a deficient number, since it is larger than the sum of its proper divisors (650869).

1242507 is an equidigital number, since it uses as much as digits as its factorization.

1242507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59177.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 1242507 is about 1114.6779804051. The cubic root of 1242507 is about 107.5060605922.

Adding to 1242507 its reverse (7052421), we get a palindrome (8294928).

The spelling of 1242507 in words is "one million, two hundred forty-two thousand, five hundred seven".