1251402 has 16 divisors (see below), whose sum is σ = 2564352. Its totient is φ = 406880.

The previous prime is 1251329. The next prime is 1251409. The reversal of 1251402 is 2041521.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1251409) 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, 2298 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (160272).

2^1251402 is an apocalyptic number.

1251402 is an abundant number, since it is smaller than the sum of its proper divisors (1312950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251402 is a wasteful number, since it uses less digits than its factorization.

1251402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133.

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

The square root of 1251402 is about 1118.6608065003. The cubic root of 1251402 is about 107.7619930198.

Adding to 1251402 its reverse (2041521), we get a palindrome (3292923).

It can be divided in two parts, 1251 and 402, that added together give a triangular number (1653 = T₅₇).

The spelling of 1251402 in words is "one million, two hundred fifty-one thousand, four hundred two".