1835705149 has 2 divisors, whose sum is σ = 1835705150. Its totient is φ = 1835705148.

The previous prime is 1835705143. The next prime is 1835705153. The reversal of 1835705149 is 9415075381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1830299524 + 5405625 = 42782^2 + 2325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1835705149 is a prime.

It is a super-2 number, since 2×1835705149² = 6739626788130224402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1835705143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917852574 + 917852575.

It is an arithmetic number, because the mean of its divisors is an integer number (917852575).

Almost surely, 2^1835705149 is an apocalyptic number.

It is an amenable number.

1835705149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1835705149 is an equidigital number, since it uses as much as digits as its factorization.

1835705149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1835705149 is about 42845.1298165848. The cubic root of 1835705149 is about 1224.4309780415.

The spelling of 1835705149 in words is "one billion, eight hundred thirty-five million, seven hundred five thousand, one hundred forty-nine".