101481493 has 2 divisors, whose sum is σ = 101481494. Its totient is φ = 101481492.

The previous prime is 101481487. The next prime is 101481511. The reversal of 101481493 is 394184101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95121009 + 6360484 = 9753^2 + 2522^2 .

It is an emirp because it is prime and its reverse (394184101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101481493 - 2¹³ = 101473301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101481293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50740746 + 50740747.

It is an arithmetic number, because the mean of its divisors is an integer number (50740747).

Almost surely, 2^101481493 is an apocalyptic number.

It is an amenable number.

101481493 is a deficient number, since it is larger than the sum of its proper divisors (1).

101481493 is an equidigital number, since it uses as much as digits as its factorization.

101481493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 101481493 is about 10073.8023109450. The cubic root of 101481493 is about 466.4398166719.

The spelling of 101481493 in words is "one hundred one million, four hundred eighty-one thousand, four hundred ninety-three".