101505493 has 2 divisors, whose sum is σ = 101505494. Its totient is φ = 101505492.

The previous prime is 101505473. The next prime is 101505497. The reversal of 101505493 is 394505101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91814724 + 9690769 = 9582^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 101505493 - 2⁵ = 101505461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101505497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50752746 + 50752747.

It is an arithmetic number, because the mean of its divisors is an integer number (50752747).

Almost surely, 2^101505493 is an apocalyptic number.

It is an amenable number.

101505493 is a deficient number, since it is larger than the sum of its proper divisors (1).

101505493 is an equidigital number, since it uses as much as digits as its factorization.

101505493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 101505493 is about 10074.9934491294. The cubic root of 101505493 is about 466.4765842075.

The spelling of 101505493 in words is "one hundred one million, five hundred five thousand, four hundred ninety-three".