1129820147 has 2 divisors, whose sum is σ = 1129820148. Its totient is φ = 1129820146.

The previous prime is 1129820113. The next prime is 1129820177. The reversal of 1129820147 is 7410289211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129820147 - 2²⁶ = 1062711283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1129820177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564910073 + 564910074.

It is an arithmetic number, because the mean of its divisors is an integer number (564910074).

Almost surely, 2^1129820147 is an apocalyptic number.

1129820147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129820147 is an equidigital number, since it uses as much as digits as its factorization.

1129820147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1129820147 is about 33612.7973694544. The cubic root of 1129820147 is about 1041.5251743845.

The spelling of 1129820147 in words is "one billion, one hundred twenty-nine million, eight hundred twenty thousand, one hundred forty-seven".