101630425 has 12 divisors (see below), whose sum is σ = 135716140. Its totient is φ = 75049920.

The previous prime is 101630363. The next prime is 101630443. The reversal of 101630425 is 524036101.

It can be written as a sum of positive squares in 6 ways, for example, as 24840256 + 76790169 = 4984^2 + 8763^2 .

It is a de Polignac number, because none of the positive numbers 2^k-101630425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101630396 and 101630405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156030 + ... + 156679.

Almost surely, 2^101630425 is an apocalyptic number.

It is an amenable number.

101630425 is a deficient number, since it is larger than the sum of its proper divisors (34085715).

101630425 is a wasteful number, since it uses less digits than its factorization.

101630425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312732 (or 312727 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 101630425 is about 10081.1916458324. The cubic root of 101630425 is about 466.6678840671.

Adding to 101630425 its reverse (524036101), we get a palindrome (625666526).

The spelling of 101630425 in words is "one hundred one million, six hundred thirty thousand, four hundred twenty-five".