1326450157 has 2 divisors, whose sum is σ = 1326450158. Its totient is φ = 1326450156.

The previous prime is 1326450137. The next prime is 1326450193. The reversal of 1326450157 is 7510546231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 753996681 + 572453476 = 27459^2 + 23926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326450157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326450137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663225078 + 663225079.

It is an arithmetic number, because the mean of its divisors is an integer number (663225079).

Almost surely, 2^1326450157 is an apocalyptic number.

It is an amenable number.

1326450157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326450157 is an equidigital number, since it uses as much as digits as its factorization.

1326450157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1326450157 is about 36420.4634374688. The cubic root of 1326450157 is about 1098.7451688131.

Adding to 1326450157 its reverse (7510546231), we get a palindrome (8836996388).

The spelling of 1326450157 in words is "one billion, three hundred twenty-six million, four hundred fifty thousand, one hundred fifty-seven".