101245449747 has 32 divisors (see below), whose sum is σ = 155659371840. Its totient is φ = 57980989440.

The previous prime is 101245449743. The next prime is 101245449751. The reversal of 101245449747 is 747944542101.

It is an interprime number because it is at equal distance from previous prime (101245449743) and next prime (101245449751).

It is not a de Polignac number, because 101245449747 - 2² = 101245449743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101245449696 and 101245449705.

It is not an unprimeable number, because it can be changed into a prime (101245449743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 798904 + ... + 916917.

It is an arithmetic number, because the mean of its divisors is an integer number (4864355370).

Almost surely, 2^101245449747 is an apocalyptic number.

101245449747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

101245449747 is a deficient number, since it is larger than the sum of its proper divisors (54413922093).

101245449747 is a wasteful number, since it uses less digits than its factorization.

101245449747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715943.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 101245449747 in words is "one hundred one billion, two hundred forty-five million, four hundred forty-nine thousand, seven hundred forty-seven".