101538461 has 2 divisors, whose sum is σ = 101538462. Its totient is φ = 101538460.

The previous prime is 101538457. The next prime is 101538487. The reversal of 101538461 is 164835101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82919236 + 18619225 = 9106^2 + 4315^2 .

It is a cyclic number.

It is not a de Polignac number, because 101538461 - 2² = 101538457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101538421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50769230 + 50769231.

It is an arithmetic number, because the mean of its divisors is an integer number (50769231).

Almost surely, 2^101538461 is an apocalyptic number.

It is an amenable number.

101538461 is a deficient number, since it is larger than the sum of its proper divisors (1).

101538461 is an equidigital number, since it uses as much as digits as its factorization.

101538461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 101538461 is about 10076.6294463972. The cubic root of 101538461 is about 466.5270810983.

The spelling of 101538461 in words is "one hundred one million, five hundred thirty-eight thousand, four hundred sixty-one".