1699121153 has 2 divisors, whose sum is σ = 1699121154. Its totient is φ = 1699121152.

The previous prime is 1699121143. The next prime is 1699121167. The reversal of 1699121153 is 3511219961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1644464704 + 54656449 = 40552^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1699121153 - 2⁶ = 1699121089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1699121143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849560576 + 849560577.

It is an arithmetic number, because the mean of its divisors is an integer number (849560577).

Almost surely, 2^1699121153 is an apocalyptic number.

It is an amenable number.

1699121153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699121153 is an equidigital number, since it uses as much as digits as its factorization.

1699121153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 38.

The square root of 1699121153 is about 41220.3972930878. The cubic root of 1699121153 is about 1193.2774919426.

The spelling of 1699121153 in words is "one billion, six hundred ninety-nine million, one hundred twenty-one thousand, one hundred fifty-three".