102143019 has 8 divisors (see below), whose sum is σ = 148571712. Its totient is φ = 61904840.

The previous prime is 102143011. The next prime is 102143029. The reversal of 102143019 is 910341201.

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 102143019 - 2³ = 102143011 is a prime.

It is a super-2 number, since 2×102143019² = 20866392660868722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102142986 and 102143004.

It is not an unprimeable number, because it can be changed into a prime (102143011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547589 + ... + 1547654.

It is an arithmetic number, because the mean of its divisors is an integer number (18571464).

Almost surely, 2^102143019 is an apocalyptic number.

102143019 is a deficient number, since it is larger than the sum of its proper divisors (46428693).

102143019 is a wasteful number, since it uses less digits than its factorization.

102143019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095257.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 102143019 is about 10106.5829536990. The cubic root of 102143019 is about 467.4511472492.

The spelling of 102143019 in words is "one hundred two million, one hundred forty-three thousand, nineteen".