1540031135044 has 6 divisors (see below), whose sum is σ = 2695054486334. Its totient is φ = 770015567520.

The previous prime is 1540031135029. The next prime is 1540031135047. The reversal of 1540031135044 is 4405311300451.

It can be written as a sum of positive squares in only one way, i.e., 1172174328900 + 367856806144 = 1082670^2 + 606512^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1540031134997 and 1540031135015.

It is not an unprimeable number, because it can be changed into a prime (1540031135047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192503891877 + ... + 192503891884.

Almost surely, 2^{1540031135044} is an apocalyptic number.

It is an amenable number.

1540031135044 is a deficient number, since it is larger than the sum of its proper divisors (1155023351290).

1540031135044 is a wasteful number, since it uses less digits than its factorization.

1540031135044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385007783765 (or 385007783763 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1540031135044 its reverse (4405311300451), we get a palindrome (5945342435495).

The spelling of 1540031135044 in words is "one trillion, five hundred forty billion, thirty-one million, one hundred thirty-five thousand, forty-four".