125005156145 has 8 divisors (see below), whose sum is σ = 150011614440. Its totient is φ = 100000506880.

The previous prime is 125005156141. The next prime is 125005156153. The reversal of 125005156145 is 541651500521.

It can be written as a sum of positive squares in 4 ways, for example, as 12503296 + 124992652849 = 3536^2 + 353543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125005156145 - 2² = 125005156141 is a prime.

It is a super-2 number, since 2×125005156145² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125005156141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295280 + ... + 580689.

It is an arithmetic number, because the mean of its divisors is an integer number (18751451805).

Almost surely, 2^125005156145 is an apocalyptic number.

It is an amenable number.

125005156145 is a deficient number, since it is larger than the sum of its proper divisors (25006458295).

125005156145 is an equidigital number, since it uses as much as digits as its factorization.

125005156145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904515.

The product of its (nonzero) digits is 30000, while the sum is 35.

Adding to 125005156145 its reverse (541651500521), we get a palindrome (666656656666).

The spelling of 125005156145 in words is "one hundred twenty-five billion, five million, one hundred fifty-six thousand, one hundred forty-five".