1238015 has 4 divisors (see below), whose sum is σ = 1485624. Its totient is φ = 990408.

The previous prime is 1237993. The next prime is 1238023. The reversal of 1238015 is 5108321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1238015 - 2¹⁴ = 1221631 is a prime.

It is a super-2 number, since 2×1238015² = 3065362280450, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123797 + ... + 123806.

It is an arithmetic number, because the mean of its divisors is an integer number (371406).

2^1238015 is an apocalyptic number.

1238015 is a deficient number, since it is larger than the sum of its proper divisors (247609).

1238015 is an equidigital number, since it uses as much as digits as its factorization.

1238015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247608.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1238015 is about 1112.6612242727. The cubic root of 1238015 is about 107.3763496248.

The spelling of 1238015 in words is "one million, two hundred thirty-eight thousand, fifteen".