2151453520 has 40 divisors (see below), whose sum is σ = 5051674440. Its totient is φ = 852057600.

The previous prime is 2151453517. The next prime is 2151453559. The reversal of 2151453520 is 253541512.

It can be written as a sum of positive squares in 4 ways, for example, as 650046016 + 1501407504 = 25496^2 + 38748^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125055 + ... + 141214.

It is an arithmetic number, because the mean of its divisors is an integer number (126291861).

Almost surely, 2^2151453520 is an apocalyptic number.

2151453520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151453520 is an abundant number, since it is smaller than the sum of its proper divisors (2900220920).

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

2151453520 is a wasteful number, since it uses less digits than its factorization.

2151453520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266383 (or 266377 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2151453520 is about 46383.7635385487. The cubic root of 2151453520 is about 1290.9536685357.

The spelling of 2151453520 in words is "two billion, one hundred fifty-one million, four hundred fifty-three thousand, five hundred twenty".