125131340146 has 32 divisors (see below), whose sum is σ = 198104583600. Its totient is φ = 59214904320.

The previous prime is 125131340143. The next prime is 125131340153. The reversal of 125131340146 is 641043131521.

It can be written as a sum of positive squares in 8 ways, for example, as 1723163121 + 123408177025 = 41511^2 + 351295^2 .

It is not an unprimeable number, because it can be changed into a prime (125131340143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225040 + ... + 548548.

Almost surely, 2^125131340146 is an apocalyptic number.

125131340146 is a deficient number, since it is larger than the sum of its proper divisors (72973243454).

125131340146 is a wasteful number, since it uses less digits than its factorization.

125131340146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323694.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 125131340146 its reverse (641043131521), we get a palindrome (766174471667).

The spelling of 125131340146 in words is "one hundred twenty-five billion, one hundred thirty-one million, three hundred forty thousand, one hundred forty-six".