920108551 has 8 divisors (see below), whose sum is σ = 952059008. Its totient is φ = 888300000.

The previous prime is 920108513. The next prime is 920108569. The reversal of 920108551 is 155801029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 920108551 - 2⁹ = 920108039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920108591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22200 + ... + 48301.

It is an arithmetic number, because the mean of its divisors is an integer number (119007376).

Almost surely, 2^920108551 is an apocalyptic number.

920108551 is a deficient number, since it is larger than the sum of its proper divisors (31950457).

920108551 is a wasteful number, since it uses less digits than its factorization.

920108551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70953.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 920108551 is about 30333.2911336703. The cubic root of 920108551 is about 972.6270767035.

The spelling of 920108551 in words is "nine hundred twenty million, one hundred eight thousand, five hundred fifty-one".