125761561147 has 16 divisors (see below), whose sum is σ = 134094949632. Its totient is φ = 117534827520.

The previous prime is 125761561141. The next prime is 125761561169. The reversal of 125761561147 is 741165167521.

It is a cyclic number.

It is not a de Polignac number, because 125761561147 - 2³ = 125761561139 is a prime.

It is a super-3 number, since 3×125761561147³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125761561097 and 125761561106.

It is not an unprimeable number, because it can be changed into a prime (125761561141) 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, 1463247 + ... + 1546807.

It is an arithmetic number, because the mean of its divisors is an integer number (8380934352).

Almost surely, 2^125761561147 is an apocalyptic number.

125761561147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

125761561147 is a deficient number, since it is larger than the sum of its proper divisors (8333388485).

125761561147 is a wasteful number, since it uses less digits than its factorization.

125761561147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84198.

The product of its digits is 352800, while the sum is 46.

The spelling of 125761561147 in words is "one hundred twenty-five billion, seven hundred sixty-one million, five hundred sixty-one thousand, one hundred forty-seven".