1497249197 has 2 divisors, whose sum is σ = 1497249198. Its totient is φ = 1497249196.

The previous prime is 1497249161. The next prime is 1497249217. The reversal of 1497249197 is 7919427941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1282069636 + 215179561 = 35806^2 + 14669^2 .

It is a cyclic number.

It is not a de Polignac number, because 1497249197 - 2¹⁰ = 1497248173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1497249137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748624598 + 748624599.

It is an arithmetic number, because the mean of its divisors is an integer number (748624599).

Almost surely, 2^1497249197 is an apocalyptic number.

It is an amenable number.

1497249197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497249197 is an equidigital number, since it uses as much as digits as its factorization.

1497249197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 53.

The square root of 1497249197 is about 38694.3044516890. The cubic root of 1497249197 is about 1144.0140625054.

The spelling of 1497249197 in words is "one billion, four hundred ninety-seven million, two hundred forty-nine thousand, one hundred ninety-seven".