1540335728233 has 2 divisors, whose sum is σ = 1540335728234. Its totient is φ = 1540335728232.

The previous prime is 1540335728213. The next prime is 1540335728251. The reversal of 1540335728233 is 3328275330451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847259498089 + 693076230144 = 920467^2 + 832512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540335728233 - 2¹⁷ = 1540335597161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1540335728213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770167864116 + 770167864117.

It is an arithmetic number, because the mean of its divisors is an integer number (770167864117).

Almost surely, 2^{1540335728233} is an apocalyptic number.

It is an amenable number.

1540335728233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540335728233 is an equidigital number, since it uses as much as digits as its factorization.

1540335728233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 1540335728233 in words is "one trillion, five hundred forty billion, three hundred thirty-five million, seven hundred twenty-eight thousand, two hundred thirty-three".