102155011 has 8 divisors (see below), whose sum is σ = 116820320. Its totient is φ = 87507648.

The previous prime is 102154993. The next prime is 102155047. The reversal of 102155011 is 110551201.

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 102155011 - 2⁷ = 102154883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102155311) 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 7 ways as a sum of consecutive naturals, for example, 11545 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (14602540).

Almost surely, 2^102155011 is an apocalyptic number.

102155011 is a deficient number, since it is larger than the sum of its proper divisors (14665309).

102155011 is an equidigital number, since it uses as much as digits as its factorization.

102155011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 102155011 is about 10107.1762129687. The cubic root of 102155011 is about 467.4694400796.

The spelling of 102155011 in words is "one hundred two million, one hundred fifty-five thousand, eleven".