1401512525 has 12 divisors (see below), whose sum is σ = 1986143712. Its totient is φ = 961037040.

The previous prime is 1401512513. The next prime is 1401512531. The reversal of 1401512525 is 5252151041.

It is not a de Polignac number, because 1401512525 - 2¹² = 1401508429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1401512494 and 1401512503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4004147 + ... + 4004496.

It is an arithmetic number, because the mean of its divisors is an integer number (165511976).

Almost surely, 2^1401512525 is an apocalyptic number.

It is an amenable number.

1401512525 is a deficient number, since it is larger than the sum of its proper divisors (584631187).

1401512525 is an equidigital number, since it uses as much as digits as its factorization.

1401512525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008660 (or 8008655 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1401512525 is about 37436.7803770570. The cubic root of 1401512525 is about 1119.0916649409.

Adding to 1401512525 its reverse (5252151041), we get a palindrome (6653663566).

The spelling of 1401512525 in words is "one billion, four hundred one million, five hundred twelve thousand, five hundred twenty-five".