1147451197 has 2 divisors, whose sum is σ = 1147451198. Its totient is φ = 1147451196.

The previous prime is 1147451167. The next prime is 1147451213. The reversal of 1147451197 is 7911547411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057940676 + 89510521 = 32526^2 + 9461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147451197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147451147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573725598 + 573725599.

It is an arithmetic number, because the mean of its divisors is an integer number (573725599).

Almost surely, 2^1147451197 is an apocalyptic number.

It is an amenable number.

1147451197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147451197 is an equidigital number, since it uses as much as digits as its factorization.

1147451197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 40.

The square root of 1147451197 is about 33874.0490198618. The cubic root of 1147451197 is about 1046.9149649042.

The spelling of 1147451197 in words is "one billion, one hundred forty-seven million, four hundred fifty-one thousand, one hundred ninety-seven".