1401515000 has 40 divisors (see below), whose sum is σ = 3283761360. Its totient is φ = 560604000.

The previous prime is 1401514999. The next prime is 1401515021. The reversal of 1401515000 is 5151041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1401515000.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 135152 + ... + 145151.

It is an arithmetic number, because the mean of its divisors is an integer number (82094034).

Almost surely, 2^1401515000 is an apocalyptic number.

1401515000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401515000 is an abundant number, since it is smaller than the sum of its proper divisors (1882246360).

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

1401515000 is an equidigital number, since it uses as much as digits as its factorization.

1401515000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280329 (or 280310 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1401515000 is about 37436.8134327696. The cubic root of 1401515000 is about 1119.0923236935.

Adding to 1401515000 its reverse (5151041), we get a palindrome (1406666041).

The spelling of 1401515000 in words is "one billion, four hundred one million, five hundred fifteen thousand".