1465312140 has 48 divisors (see below), whose sum is σ = 4558750560. Its totient is φ = 390749760.

The previous prime is 1465312103. The next prime is 1465312153. The reversal of 1465312140 is 412135641.

It is a happy number.

1465312140 is a `hidden beast` number, since 1 + 4 + 653 + 1 + 2 + 1 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1356231 + ... + 1357310.

It is an arithmetic number, because the mean of its divisors is an integer number (94973970).

Almost surely, 2^1465312140 is an apocalyptic number.

1465312140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1465312140 is an abundant number, since it is smaller than the sum of its proper divisors (3093438420).

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

1465312140 is a wasteful number, since it uses less digits than its factorization.

1465312140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713559 (or 2713551 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1465312140 is about 38279.3957632562. The cubic root of 1465312140 is about 1135.8214059568.

Adding to 1465312140 its reverse (412135641), we get a palindrome (1877447781).

The spelling of 1465312140 in words is "one billion, four hundred sixty-five million, three hundred twelve thousand, one hundred forty".