1465140180 has 144 divisors (see below), whose sum is σ = 4785854976. Its totient is φ = 333930240.

The previous prime is 1465140143. The next prime is 1465140221. The reversal of 1465140180 is 810415641.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1784170 + ... + 1784990.

It is an arithmetic number, because the mean of its divisors is an integer number (33235104).

Almost surely, 2^1465140180 is an apocalyptic number.

1465140180 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 1465140180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2392927488).

1465140180 is an abundant number, since it is smaller than the sum of its proper divisors (3320714796).

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

1465140180 is a wasteful number, since it uses less digits than its factorization.

1465140180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1465140180 is about 38277.1495803959. The cubic root of 1465140180 is about 1135.7769732191.

The spelling of 1465140180 in words is "one billion, four hundred sixty-five million, one hundred forty thousand, one hundred eighty".