101620479 has 8 divisors (see below), whose sum is σ = 137790720. Its totient is φ = 66598616.

The previous prime is 101620471. The next prime is 101620501. The reversal of 101620479 is 974026101.

It is a happy number.

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 101620479 - 2³ = 101620471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101620471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286887 + ... + 287240.

It is an arithmetic number, because the mean of its divisors is an integer number (17223840).

Almost surely, 2^101620479 is an apocalyptic number.

101620479 is a deficient number, since it is larger than the sum of its proper divisors (36170241).

101620479 is an equidigital number, since it uses as much as digits as its factorization.

101620479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574189.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 101620479 is about 10080.6983389049. The cubic root of 101620479 is about 466.6526601805.

The spelling of 101620479 in words is "one hundred one million, six hundred twenty thousand, four hundred seventy-nine".