1251937 has 2 divisors, whose sum is σ = 1251938. Its totient is φ = 1251936.

The previous prime is 1251923. The next prime is 1251947. The reversal of 1251937 is 7391521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 853776 + 398161 = 924^2 + 631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1251937 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (1251907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625968 + 625969.

It is an arithmetic number, because the mean of its divisors is an integer number (625969).

2^1251937 is an apocalyptic number.

It is an amenable number.

1251937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251937 is an equidigital number, since it uses as much as digits as its factorization.

1251937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 28.

The square root of 1251937 is about 1118.8999061578. The cubic root of 1251937 is about 107.7773476520. Note that the first 3 decimals are identical.

It can be divided in two parts, 12519 and 37, that multiplied together give a triangular number (463203 = T₉₆₂).

The spelling of 1251937 in words is "one million, two hundred fifty-one thousand, nine hundred thirty-seven".