101425505 has 8 divisors (see below), whose sum is σ = 121771752. Its totient is φ = 81099648.

The previous prime is 101425501. The next prime is 101425507. The reversal of 101425505 is 505524101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66650896 + 34774609 = 8164^2 + 5897^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101425505 - 2² = 101425501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101425501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9827 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (15221469).

Almost surely, 2^101425505 is an apocalyptic number.

It is an amenable number.

101425505 is a deficient number, since it is larger than the sum of its proper divisors (20346247).

101425505 is an equidigital number, since it uses as much as digits as its factorization.

101425505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 101425505 is about 10071.0230364149. The cubic root of 101425505 is about 466.3540215981.

Adding to 101425505 its reverse (505524101), we get a palindrome (606949606).

The spelling of 101425505 in words is "one hundred one million, four hundred twenty-five thousand, five hundred five".