131025415 has 4 divisors (see below), whose sum is σ = 157230504. Its totient is φ = 104820328.

The previous prime is 131025407. The next prime is 131025467. The reversal of 131025415 is 514520131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131025415 - 2³ = 131025407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13102537 + ... + 13102546.

It is an arithmetic number, because the mean of its divisors is an integer number (39307626).

Almost surely, 2^131025415 is an apocalyptic number.

131025415 is a deficient number, since it is larger than the sum of its proper divisors (26205089).

131025415 is an equidigital number, since it uses as much as digits as its factorization.

131025415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26205088.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 131025415 is about 11446.6333478451. The cubic root of 131025415 is about 507.9081495851.

Adding to 131025415 its reverse (514520131), we get a palindrome (645545546).

The spelling of 131025415 in words is "one hundred thirty-one million, twenty-five thousand, four hundred fifteen".