102947951 has 4 divisors (see below), whose sum is σ = 103259304. Its totient is φ = 102636600.

The previous prime is 102947927. The next prime is 102947953. The reversal of 102947951 is 159749201.

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

It is a cyclic number.

It is not a de Polignac number, because 102947951 - 2¹⁰ = 102946927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102947953) 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, 155180 + ... + 155841.

It is an arithmetic number, because the mean of its divisors is an integer number (25814826).

Almost surely, 2^102947951 is an apocalyptic number.

102947951 is a deficient number, since it is larger than the sum of its proper divisors (311353).

102947951 is an equidigital number, since it uses as much as digits as its factorization.

102947951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311352.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 102947951 is about 10146.3269708797. The cubic root of 102947951 is about 468.6758428229.

The spelling of 102947951 in words is "one hundred two million, nine hundred forty-seven thousand, nine hundred fifty-one".