1506213197 has 2 divisors, whose sum is σ = 1506213198. Its totient is φ = 1506213196.

The previous prime is 1506213179. The next prime is 1506213199. The reversal of 1506213197 is 7913126051.

Together with previous prime (1506213179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1424383081 + 81830116 = 37741^2 + 9046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1506213197 - 2¹⁰ = 1506212173 is a prime.

Together with 1506213199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1506213199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753106598 + 753106599.

It is an arithmetic number, because the mean of its divisors is an integer number (753106599).

Almost surely, 2^1506213197 is an apocalyptic number.

It is an amenable number.

1506213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1506213197 is an equidigital number, since it uses as much as digits as its factorization.

1506213197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1506213197 is about 38809.9625998274. The cubic root of 1506213197 is about 1146.2925842329.

The spelling of 1506213197 in words is "one billion, five hundred six million, two hundred thirteen thousand, one hundred ninety-seven".