2150531040 has 96 divisors (see below), whose sum is σ = 7741923840. Its totient is φ = 491549184.

The previous prime is 2150531029. The next prime is 2150531041. The reversal of 2150531040 is 401350512.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2150530998 and 2150531016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150531041) 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, 316660 + ... + 323379.

It is an arithmetic number, because the mean of its divisors is an integer number (80645040).

Almost surely, 2^2150531040 is an apocalyptic number.

2150531040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150531040 is an abundant number, since it is smaller than the sum of its proper divisors (5591392800).

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

2150531040 is a wasteful number, since it uses less digits than its factorization.

2150531040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640064 (or 640056 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2150531040 is about 46373.8184755148. The cubic root of 2150531040 is about 1290.7691345026.

Adding to 2150531040 its reverse (401350512), we get a palindrome (2551881552).

The spelling of 2150531040 in words is "two billion, one hundred fifty million, five hundred thirty-one thousand, forty".