1994014153 has 2 divisors, whose sum is σ = 1994014154. Its totient is φ = 1994014152.

The previous prime is 1994014111. The next prime is 1994014157. The reversal of 1994014153 is 3514104991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1511421129 + 482593024 = 38877^2 + 21968^2 .

It is an emirp because it is prime and its reverse (3514104991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1994014153 - 2²⁹ = 1457143241 is a prime.

It is a super-4 number, since 4×1994014153⁴ (a number of 38 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (1994014157) 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, 997007076 + 997007077.

It is an arithmetic number, because the mean of its divisors is an integer number (997007077).

Almost surely, 2^1994014153 is an apocalyptic number.

It is an amenable number.

1994014153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994014153 is an equidigital number, since it uses as much as digits as its factorization.

1994014153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 1994014153 is about 44654.3855964898. The cubic root of 1994014153 is about 1258.6628447154.

The spelling of 1994014153 in words is "one billion, nine hundred ninety-four million, fourteen thousand, one hundred fifty-three".