12955140 has 120 divisors (see below), whose sum is σ = 44396352. Its totient is φ = 3136320.

The previous prime is 12955133. The next prime is 12955147. The reversal of 12955140 is 4155921.

It is an interprime number because it is at equal distance from previous prime (12955133) and next prime (12955147).

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

It is not an unprimeable number, because it can be changed into a prime (12955147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17457 + ... + 18183.

Almost surely, 2^12955140 is an apocalyptic number.

12955140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12955140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22198176).

12955140 is an abundant number, since it is smaller than the sum of its proper divisors (31441212).

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

12955140 is a wasteful number, since it uses less digits than its factorization.

12955140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 12955140 is about 3599.3249367069. The cubic root of 12955140 is about 234.8626932919.

The spelling of 12955140 in words is "twelve million, nine hundred fifty-five thousand, one hundred forty".