102190706 has 8 divisors (see below), whose sum is σ = 162302940. Its totient is φ = 48089728.

The previous prime is 102190703. The next prime is 102190717. The reversal of 102190706 is 607091201.

It can be written as a sum of positive squares in 2 ways, for example, as 98823481 + 3367225 = 9941^2 + 1835^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102190703) 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, 1502771 + ... + 1502838.

Almost surely, 2^102190706 is an apocalyptic number.

102190706 is a deficient number, since it is larger than the sum of its proper divisors (60112234).

102190706 is a wasteful number, since it uses less digits than its factorization.

102190706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005628.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 102190706 is about 10108.9418833031. The cubic root of 102190706 is about 467.5238814571.

The spelling of 102190706 in words is "one hundred two million, one hundred ninety thousand, seven hundred six".