1540086312 has 32 divisors (see below), whose sum is σ = 3858086880. Its totient is φ = 512312640.

The previous prime is 1540086311. The next prime is 1540086341. The reversal of 1540086312 is 2136800451.

It is a super-2 number, since 2×1540086312² = 4743731696819522688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1540086312.

It is not an unprimeable number, because it can be changed into a prime (1540086311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53563 + ... + 77130.

It is an arithmetic number, because the mean of its divisors is an integer number (120565215).

Almost surely, 2^1540086312 is an apocalyptic number.

1540086312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1540086312 is an abundant number, since it is smaller than the sum of its proper divisors (2318000568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540086312 is a wasteful number, since it uses less digits than its factorization.

1540086312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131193 (or 131189 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1540086312 is about 39243.9334419984. The cubic root of 1540086312 is about 1154.8219241586.

Adding to 1540086312 its reverse (2136800451), we get a palindrome (3676886763).

The spelling of 1540086312 in words is "one billion, five hundred forty million, eighty-six thousand, three hundred twelve".