1540317148 has 12 divisors (see below), whose sum is σ = 2696213520. Its totient is φ = 769970432.

The previous prime is 1540317131. The next prime is 1540317157. The reversal of 1540317148 is 8417130451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27736 + ... + 62047.

It is an arithmetic number, because the mean of its divisors is an integer number (224684460).

Almost surely, 2^1540317148 is an apocalyptic number.

It is an amenable number.

1540317148 is a deficient number, since it is larger than the sum of its proper divisors (1155896372).

1540317148 is a wasteful number, since it uses less digits than its factorization.

1540317148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94076 (or 94074 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1540317148 is about 39246.8743723624. The cubic root of 1540317148 is about 1154.8796181450.

Adding to 1540317148 its reverse (8417130451), we get a palindrome (9957447599).

The spelling of 1540317148 in words is "one billion, five hundred forty million, three hundred seventeen thousand, one hundred forty-eight".