101520427 has 2 divisors, whose sum is σ = 101520428. Its totient is φ = 101520426.

The previous prime is 101520407. The next prime is 101520473. The reversal of 101520427 is 724025101.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (724025101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101520427 - 2⁷ = 101520299 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 101520398 and 101520407.

It is not a weakly prime, because it can be changed into another prime (101520407) 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 as a sum of consecutive naturals, namely, 50760213 + 50760214.

It is an arithmetic number, because the mean of its divisors is an integer number (50760214).

Almost surely, 2^101520427 is an apocalyptic number.

101520427 is a deficient number, since it is larger than the sum of its proper divisors (1).

101520427 is an equidigital number, since it uses as much as digits as its factorization.

101520427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 101520427 is about 10075.7345637924. The cubic root of 101520427 is about 466.4994598815.

Adding to 101520427 its reverse (724025101), we get a palindrome (825545528).

The spelling of 101520427 in words is "one hundred one million, five hundred twenty thousand, four hundred twenty-seven".