102239967 has 8 divisors (see below), whose sum is σ = 137082240. Its totient is φ = 67778840.

The previous prime is 102239947. The next prime is 102239971. The reversal of 102239967 is 769932201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102239967 is a prime.

It is a super-2 number, since 2×102239967² = 20906021704322178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102239947) 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, 94659 + ... + 95732.

It is an arithmetic number, because the mean of its divisors is an integer number (17135280).

Almost surely, 2^102239967 is an apocalyptic number.

102239967 is a deficient number, since it is larger than the sum of its proper divisors (34842273).

102239967 is a wasteful number, since it uses less digits than its factorization.

102239967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190573.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 102239967 is about 10111.3780959867. The cubic root of 102239967 is about 467.5989926395.

The spelling of 102239967 in words is "one hundred two million, two hundred thirty-nine thousand, nine hundred sixty-seven".