1231502 has 4 divisors (see below), whose sum is σ = 1847256. Its totient is φ = 615750.

The previous prime is 1231487. The next prime is 1231511. The reversal of 1231502 is 2051321.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307874 + ... + 307877.

It is an arithmetic number, because the mean of its divisors is an integer number (461814).

2^1231502 is an apocalyptic number.

1231502 is a deficient number, since it is larger than the sum of its proper divisors (615754).

1231502 is an equidigital number, since it uses as much as digits as its factorization.

1231502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615753.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1231502 is about 1109.7305979381. The cubic root of 1231502 is about 107.1877218246.

Adding to 1231502 its reverse (2051321), we get a palindrome (3282823).

The spelling of 1231502 in words is "one million, two hundred thirty-one thousand, five hundred two".