101153091449 has 2 divisors, whose sum is σ = 101153091450. Its totient is φ = 101153091448.

The previous prime is 101153091439. The next prime is 101153091491. The reversal of 101153091449 is 944190351101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95799535225 + 5353556224 = 309515^2 + 73168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101153091449 is a prime.

It is not a weakly prime, because it can be changed into another prime (101153091439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50576545724 + 50576545725.

It is an arithmetic number, because the mean of its divisors is an integer number (50576545725).

Almost surely, 2^101153091449 is an apocalyptic number.

It is an amenable number.

101153091449 is a deficient number, since it is larger than the sum of its proper divisors (1).

101153091449 is an equidigital number, since it uses as much as digits as its factorization.

101153091449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 101153091449 in words is "one hundred one billion, one hundred fifty-three million, ninety-one thousand, four hundred forty-nine".