126140025 has 24 divisors (see below), whose sum is σ = 227512224. Its totient is φ = 61158400.

The previous prime is 126139999. The next prime is 126140039. The reversal of 126140025 is 520041621.

It is not a de Polignac number, because 126140025 - 2⁹ = 126139513 is a prime.

It is a super-2 number, since 2×126140025² = 31822611814001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126139983 and 126140010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75624 + ... + 77273.

It is an arithmetic number, because the mean of its divisors is an integer number (9479676).

Almost surely, 2^126140025 is an apocalyptic number.

126140025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126140025 is a deficient number, since it is larger than the sum of its proper divisors (101372199).

126140025 is a wasteful number, since it uses less digits than its factorization.

126140025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152921 (or 152916 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 126140025 is about 11231.2076376497. The cubic root of 126140025 is about 501.5154356028.

Adding to 126140025 its reverse (520041621), we get a palindrome (646181646).

The spelling of 126140025 in words is "one hundred twenty-six million, one hundred forty thousand, twenty-five".