1990700141 has 2 divisors, whose sum is σ = 1990700142. Its totient is φ = 1990700140.

The previous prime is 1990700069. The next prime is 1990700149. The reversal of 1990700141 is 1410070991.

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., 1989606025 + 1094116 = 44605^2 + 1046^2 .

It is a cyclic number.

It is not a de Polignac number, because 1990700141 - 2¹⁴ = 1990683757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1990700098 and 1990700107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1990700149) 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, 995350070 + 995350071.

It is an arithmetic number, because the mean of its divisors is an integer number (995350071).

Almost surely, 2^1990700141 is an apocalyptic number.

It is an amenable number.

1990700141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1990700141 is an equidigital number, since it uses as much as digits as its factorization.

1990700141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1990700141 is about 44617.2628138482. The cubic root of 1990700141 is about 1257.9651671635.

The spelling of 1990700141 in words is "one billion, nine hundred ninety million, seven hundred thousand, one hundred forty-one".