101146949 has 4 divisors (see below), whose sum is σ = 103055436. Its totient is φ = 99238464.

The previous prime is 101146943. The next prime is 101146973. The reversal of 101146949 is 949641101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949641101 = 6553 ⋅144917.

It can be written as a sum of positive squares in 2 ways, for example, as 50481025 + 50665924 = 7105^2 + 7118^2 .

It is a cyclic number.

It is not a de Polignac number, because 101146949 - 2¹⁶ = 101081413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101146943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954164 + ... + 954269.

It is an arithmetic number, because the mean of its divisors is an integer number (25763859).

Almost surely, 2^101146949 is an apocalyptic number.

It is an amenable number.

101146949 is a deficient number, since it is larger than the sum of its proper divisors (1908487).

101146949 is an equidigital number, since it uses as much as digits as its factorization.

101146949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908486.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 101146949 is about 10057.1839497943. The cubic root of 101146949 is about 465.9266970726.

The spelling of 101146949 in words is "one hundred one million, one hundred forty-six thousand, nine hundred forty-nine".