101654489 has 2 divisors, whose sum is σ = 101654490. Its totient is φ = 101654488.

The previous prime is 101654473. The next prime is 101654513. The reversal of 101654489 is 984456101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86638864 + 15015625 = 9308^2 + 3875^2 .

It is a cyclic number.

It is not a de Polignac number, because 101654489 - 2⁴ = 101654473 is a prime.

It is a super-2 number, since 2×101654489² = 20667270267702242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101654419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50827244 + 50827245.

It is an arithmetic number, because the mean of its divisors is an integer number (50827245).

Almost surely, 2^101654489 is an apocalyptic number.

It is an amenable number.

101654489 is a deficient number, since it is larger than the sum of its proper divisors (1).

101654489 is an equidigital number, since it uses as much as digits as its factorization.

101654489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 101654489 is about 10082.3850848894. The cubic root of 101654489 is about 466.7047136213.

The spelling of 101654489 in words is "one hundred one million, six hundred fifty-four thousand, four hundred eighty-nine".