1300645140 has 48 divisors (see below), whose sum is σ = 3662886528. Its totient is φ = 344831104.

The previous prime is 1300645139. The next prime is 1300645141. The reversal of 1300645140 is 415460031.

It is an interprime number because it is at equal distance from previous prime (1300645139) and next prime (1300645141).

It is a self number, because there is not a number n which added to its sum of digits gives 1300645140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300645141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52272 + ... + 73031.

It is an arithmetic number, because the mean of its divisors is an integer number (76310136).

Almost surely, 2^1300645140 is an apocalyptic number.

1300645140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300645140 is an abundant number, since it is smaller than the sum of its proper divisors (2362241388).

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

1300645140 is a wasteful number, since it uses less digits than its factorization.

1300645140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125488 (or 125486 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1300645140 is about 36064.4581270813. The cubic root of 1300645140 is about 1091.5733919749.

The spelling of 1300645140 in words is "one billion, three hundred million, six hundred forty-five thousand, one hundred forty".