131851025 has 6 divisors (see below), whose sum is σ = 163495302. Its totient is φ = 105480800.

The previous prime is 131851003. The next prime is 131851037. The reversal of 131851025 is 520158131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 817216 + 131033809 = 904^2 + 11447^2 .

It is not a de Polignac number, because 131851025 - 2¹⁴ = 131834641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131850985 and 131851003.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2636996 + ... + 2637045.

It is an arithmetic number, because the mean of its divisors is an integer number (27249217).

Almost surely, 2^131851025 is an apocalyptic number.

It is an amenable number.

131851025 is a deficient number, since it is larger than the sum of its proper divisors (31644277).

131851025 is an equidigital number, since it uses as much as digits as its factorization.

131851025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274051 (or 5274046 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 131851025 is about 11482.6401580821. The cubic root of 131851025 is about 508.9727174943.

The spelling of 131851025 in words is "one hundred thirty-one million, eight hundred fifty-one thousand, twenty-five".