1252018 has 4 divisors (see below), whose sum is σ = 1878030. Its totient is φ = 626008.

The previous prime is 1251983. The next prime is 1252021. The reversal of 1252018 is 8102521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8102521 = 7 ⋅1157503.

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 26569 = 1107^2 + 163^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1251986 and 1252004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313003 + ... + 313006.

2^1252018 is an apocalyptic number.

1252018 is a deficient number, since it is larger than the sum of its proper divisors (626012).

1252018 is an equidigital number, since it uses as much as digits as its factorization.

1252018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626011.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1252018 is about 1118.9361018396. The cubic root of 1252018 is about 107.7796719907.

Adding to 1252018 its reverse (8102521), we get a palindrome (9354539).

The spelling of 1252018 in words is "one million, two hundred fifty-two thousand, eighteen".