125414215501 has 2 divisors, whose sum is σ = 125414215502. Its totient is φ = 125414215500.

The previous prime is 125414215499. The next prime is 125414215547. The reversal of 125414215501 is 105512414521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67950934276 + 57463281225 = 260674^2 + 239715^2 .

It is a cyclic number.

It is not a de Polignac number, because 125414215501 - 2¹ = 125414215499 is a prime.

Together with 125414215499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125414215561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62707107750 + 62707107751.

It is an arithmetic number, because the mean of its divisors is an integer number (62707107751).

Almost surely, 2^125414215501 is an apocalyptic number.

It is an amenable number.

125414215501 is a deficient number, since it is larger than the sum of its proper divisors (1).

125414215501 is an equidigital number, since it uses as much as digits as its factorization.

125414215501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 125414215501 in words is "one hundred twenty-five billion, four hundred fourteen million, two hundred fifteen thousand, five hundred one".