102155411 has 4 divisors (see below), whose sum is σ = 102190872. Its totient is φ = 102119952.

The previous prime is 102155399. The next prime is 102155423. The reversal of 102155411 is 114551201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (102155399) and next prime (102155423).

It is a cyclic number.

It is not a de Polignac number, because 102155411 - 2²² = 97961107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102155461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12986 + ... + 19311.

It is an arithmetic number, because the mean of its divisors is an integer number (25547718).

Almost surely, 2^102155411 is an apocalyptic number.

102155411 is a deficient number, since it is larger than the sum of its proper divisors (35461).

102155411 is an equidigital number, since it uses as much as digits as its factorization.

102155411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35460.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 102155411 is about 10107.1960008699. The cubic root of 102155411 is about 467.4700502228.

The spelling of 102155411 in words is "one hundred two million, one hundred fifty-five thousand, four hundred eleven".