101103649 has 2 divisors, whose sum is σ = 101103650. Its totient is φ = 101103648.

The previous prime is 101103589. The next prime is 101103661. The reversal of 101103649 is 946301101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 46240000 = 7407^2 + 6800^2 .

It is a cyclic number.

It is not a de Polignac number, because 101103649 - 2²¹ = 99006497 is a prime.

It is a super-2 number, since 2×101103649² = 20443895682230402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101103689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50551824 + 50551825.

It is an arithmetic number, because the mean of its divisors is an integer number (50551825).

Almost surely, 2^101103649 is an apocalyptic number.

It is an amenable number.

101103649 is a deficient number, since it is larger than the sum of its proper divisors (1).

101103649 is an equidigital number, since it uses as much as digits as its factorization.

101103649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 101103649 is about 10055.0310292908. The cubic root of 101103649 is about 465.8602013924.

The spelling of 101103649 in words is "one hundred one million, one hundred three thousand, six hundred forty-nine".