1251254 has 4 divisors (see below), whose sum is σ = 1876884. Its totient is φ = 625626.

The previous prime is 1251247. The next prime is 1251259. The reversal of 1251254 is 4521521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4521521 = 41 ⋅110281.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312812 + ... + 312815.

It is an arithmetic number, because the mean of its divisors is an integer number (469221).

2^1251254 is an apocalyptic number.

1251254 is a deficient number, since it is larger than the sum of its proper divisors (625630).

1251254 is an equidigital number, since it uses as much as digits as its factorization.

1251254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625629.

The product of its digits is 400, while the sum is 20.

The square root of 1251254 is about 1118.5946540191. The cubic root of 1251254 is about 107.7577446105.

Adding to 1251254 its reverse (4521521), we get a palindrome (5772775).

It can be divided in two parts, 125125 and 4, that multiplied together give a triangular number (500500 = T₁₀₀₀).

The spelling of 1251254 in words is "one million, two hundred fifty-one thousand, two hundred fifty-four".