2140451525 has 12 divisors (see below), whose sum is σ = 2670058272. Its totient is φ = 1702104240.

The previous prime is 2140451497. The next prime is 2140451527. The reversal of 2140451525 is 5251540412.

2140451525 = 9241² + 9242² + ... + 9265².

It is a de Polignac number, because none of the positive numbers 2^k-2140451525 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140451527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252167 + ... + 260516.

It is an arithmetic number, because the mean of its divisors is an integer number (222504856).

Almost surely, 2^2140451525 is an apocalyptic number.

2140451525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2140451525 is a deficient number, since it is larger than the sum of its proper divisors (529606747).

2140451525 is a wasteful number, since it uses less digits than its factorization.

2140451525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512860 (or 512855 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2140451525 is about 46265.0140494953. The cubic root of 2140451525 is about 1288.7493688226.

Adding to 2140451525 its reverse (5251540412), we get a palindrome (7391991937).

The spelling of 2140451525 in words is "two billion, one hundred forty million, four hundred fifty-one thousand, five hundred twenty-five".