1240537475 has 12 divisors (see below), whose sum is σ = 1538804784. Its totient is φ = 992082720.

The previous prime is 1240537469. The next prime is 1240537511. The reversal of 1240537475 is 5747350421.

It is not a de Polignac number, because 1240537475 - 2¹² = 1240533379 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83297 + ... + 97053.

It is an arithmetic number, because the mean of its divisors is an integer number (128233732).

Almost surely, 2^1240537475 is an apocalyptic number.

1240537475 is a deficient number, since it is larger than the sum of its proper divisors (298267309).

1240537475 is a wasteful number, since it uses less digits than its factorization.

1240537475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374 (or 17369 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 1240537475 is about 35221.2645286906. The cubic root of 1240537475 is about 1074.4922715021.

Adding to 1240537475 its reverse (5747350421), we get a palindrome (6987887896).

The spelling of 1240537475 in words is "one billion, two hundred forty million, five hundred thirty-seven thousand, four hundred seventy-five".