1810460381 has 2 divisors, whose sum is σ = 1810460382. Its totient is φ = 1810460380.

The previous prime is 1810460369. The next prime is 1810460389. The reversal of 1810460381 is 1830640181.

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., 1278420025 + 532040356 = 35755^2 + 23066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1810460381 - 2¹⁴ = 1810443997 is a prime.

It is a super-2 number, since 2×1810460381² = 6555533582341330322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1810460389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905230190 + 905230191.

It is an arithmetic number, because the mean of its divisors is an integer number (905230191).

Almost surely, 2^1810460381 is an apocalyptic number.

It is an amenable number.

1810460381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1810460381 is an equidigital number, since it uses as much as digits as its factorization.

1810460381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1810460381 is about 42549.5050617513. The cubic root of 1810460381 is about 1218.7922251739.

The spelling of 1810460381 in words is "one billion, eight hundred ten million, four hundred sixty thousand, three hundred eighty-one".