1252401 has 8 divisors (see below), whose sum is σ = 1678080. Its totient is φ = 830832.

The previous prime is 1252399. The next prime is 1252403. The reversal of 1252401 is 1042521.

1252401 = T₃₆₄ + T₃₆₅ + ... + T₃₈₁.

It is an interprime number because it is at equal distance from previous prime (1252399) and next prime (1252403).

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

It is not a de Polignac number, because 1252401 - 2¹ = 1252399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252403) 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, 225 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (209760).

2^1252401 is an apocalyptic number.

It is an amenable number.

1252401 is a deficient number, since it is larger than the sum of its proper divisors (425679).

1252401 is a wasteful number, since it uses less digits than its factorization.

1252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1252401 is about 1119.1072334678. The cubic root of 1252401 is about 107.7906610249.

Adding to 1252401 its reverse (1042521), we get a palindrome (2294922).

It can be divided in two parts, 1252 and 401, that added together give a triangular number (1653 = T₅₇).

The spelling of 1252401 in words is "one million, two hundred fifty-two thousand, four hundred one".