101778053 has 12 divisors (see below), whose sum is σ = 113770368. Its totient is φ = 90913680.

The previous prime is 101778043. The next prime is 101778091. The reversal of 101778053 is 350877101.

It is not a de Polignac number, because 101778053 - 2⁶ = 101777989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101778043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4475 + ... + 14952.

It is an arithmetic number, because the mean of its divisors is an integer number (9480864).

Almost surely, 2^101778053 is an apocalyptic number.

101778053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101778053 is a deficient number, since it is larger than the sum of its proper divisors (11992315).

101778053 is a wasteful number, since it uses less digits than its factorization.

101778053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19484 (or 19471 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 101778053 is about 10088.5109406691. The cubic root of 101778053 is about 466.8937347913.

The spelling of 101778053 in words is "one hundred one million, seven hundred seventy-eight thousand, fifty-three".