125461020415 has 4 divisors (see below), whose sum is σ = 150553224504. Its totient is φ = 100368816328.

The previous prime is 125461020401. The next prime is 125461020463. The reversal of 125461020415 is 514020164521.

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 125461020415 - 2²¹ = 125458923263 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, 12546102037 + ... + 12546102046.

It is an arithmetic number, because the mean of its divisors is an integer number (37638306126).

Almost surely, 2^125461020415 is an apocalyptic number.

125461020415 is a deficient number, since it is larger than the sum of its proper divisors (25092204089).

125461020415 is an equidigital number, since it uses as much as digits as its factorization.

125461020415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25092204088.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 125461020415 its reverse (514020164521), we get a palindrome (639481184936).

The spelling of 125461020415 in words is "one hundred twenty-five billion, four hundred sixty-one million, twenty thousand, four hundred fifteen".