101425405 has 4 divisors (see below), whose sum is σ = 121710492. Its totient is φ = 81140320.

The previous prime is 101425403. The next prime is 101425421. The reversal of 101425405 is 504524101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17757796 + 83667609 = 4214^2 + 9147^2 .

It is not a de Polignac number, because 101425405 - 2¹ = 101425403 is a prime.

It is a super-2 number, since 2×101425405² = 20574225558828050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101425403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10142536 + ... + 10142545.

It is an arithmetic number, because the mean of its divisors is an integer number (30427623).

Almost surely, 2^101425405 is an apocalyptic number.

It is an amenable number.

101425405 is a deficient number, since it is larger than the sum of its proper divisors (20285087).

101425405 is an equidigital number, since it uses as much as digits as its factorization.

101425405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20285086.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 101425405 is about 10071.0180716748. The cubic root of 101425405 is about 466.3538683316.

Adding to 101425405 its reverse (504524101), we get a palindrome (605949506).

The spelling of 101425405 in words is "one hundred one million, four hundred twenty-five thousand, four hundred five".