102391601 has 8 divisors (see below), whose sum is σ = 112349160. Its totient is φ = 92731392.

The previous prime is 102391571. The next prime is 102391613. The reversal of 102391601 is 106193201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5880625 + 96510976 = 2425^2 + 9824^2 .

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

It is not a de Polignac number, because 102391601 - 2⁶ = 102391537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102391621) 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, 73616 + ... + 74993.

It is an arithmetic number, because the mean of its divisors is an integer number (14043645).

Almost surely, 2^102391601 is an apocalyptic number.

It is an amenable number.

102391601 is a deficient number, since it is larger than the sum of its proper divisors (9957559).

102391601 is a wasteful number, since it uses less digits than its factorization.

102391601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148675.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 102391601 is about 10118.8735044964. The cubic root of 102391601 is about 467.8300467097.

The spelling of 102391601 in words is "one hundred two million, three hundred ninety-one thousand, six hundred one".