1631140025 has 12 divisors (see below), whose sum is σ = 2129067600. Its totient is φ = 1236232080.

The previous prime is 1631139973. The next prime is 1631140037. The reversal of 1631140025 is 5200411361.

It is not a de Polignac number, because 1631140025 - 2²⁴ = 1614362809 is a prime.

It is a Curzon 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, 1716515 + ... + 1717464.

It is an arithmetic number, because the mean of its divisors is an integer number (177422300).

Almost surely, 2^1631140025 is an apocalyptic number.

It is an amenable number.

1631140025 is a deficient number, since it is larger than the sum of its proper divisors (497927575).

1631140025 is a wasteful number, since it uses less digits than its factorization.

1631140025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434008 (or 3434003 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1631140025 is about 40387.3745742404. The cubic root of 1631140025 is about 1177.1462267558.

Adding to 1631140025 its reverse (5200411361), we get a palindrome (6831551386).

The spelling of 1631140025 in words is "one billion, six hundred thirty-one million, one hundred forty thousand, twenty-five".