1240245495 has 12 divisors (see below), whose sum is σ = 2149758936. Its totient is φ = 661464240.

The previous prime is 1240245493. The next prime is 1240245499. The reversal of 1240245495 is 5945420421.

It is a happy number.

1240245495 is a `hidden beast` number, since 124 + 0 + 2 + 45 + 495 = 666.

It is not a de Polignac number, because 1240245495 - 2¹ = 1240245493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240245493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13780461 + ... + 13780550.

It is an arithmetic number, because the mean of its divisors is an integer number (179146578).

Almost surely, 2^1240245495 is an apocalyptic number.

1240245495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1240245495 is a deficient number, since it is larger than the sum of its proper divisors (909513441).

1240245495 is a wasteful number, since it uses less digits than its factorization.

1240245495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561022 (or 27561019 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1240245495 is about 35217.1193455683. The cubic root of 1240245495 is about 1074.4079653373.

The spelling of 1240245495 in words is "one billion, two hundred forty million, two hundred forty-five thousand, four hundred ninety-five".