125153515481 has 2 divisors, whose sum is σ = 125153515482. Its totient is φ = 125153515480.

The previous prime is 125153515469. The next prime is 125153515507. The reversal of 125153515481 is 184515351521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79871803456 + 45281712025 = 282616^2 + 212795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125153515481 is a prime.

It is a super-2 number, since 2×125153515481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125153515441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62576757740 + 62576757741.

It is an arithmetic number, because the mean of its divisors is an integer number (62576757741).

Almost surely, 2^125153515481 is an apocalyptic number.

It is an amenable number.

125153515481 is a deficient number, since it is larger than the sum of its proper divisors (1).

125153515481 is an equidigital number, since it uses as much as digits as its factorization.

125153515481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120000, while the sum is 41.

The spelling of 125153515481 in words is "one hundred twenty-five billion, one hundred fifty-three million, five hundred fifteen thousand, four hundred eighty-one".