101488505 has 8 divisors (see below), whose sum is σ = 121862472. Its totient is φ = 81139968.

The previous prime is 101488493. The next prime is 101488507. The reversal of 101488505 is 505884101.

101488505 = 7123² + 7124².

It can be written as a sum of positive squares in 4 ways, for example, as 2027776 + 99460729 = 1424^2 + 9973^2 .

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 101488505 - 2⁶ = 101488441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101488507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947 + ... + 14783.

It is an arithmetic number, because the mean of its divisors is an integer number (15232809).

Almost surely, 2^101488505 is an apocalyptic number.

101488505 is the 7124-th centered square number.

It is an amenable number.

101488505 is a deficient number, since it is larger than the sum of its proper divisors (20373967).

101488505 is a wasteful number, since it uses less digits than its factorization.

101488505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12715.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 101488505 is about 10074.1503363807. The cubic root of 101488505 is about 466.4505595196.

The spelling of 101488505 in words is "one hundred one million, four hundred eighty-eight thousand, five hundred five".