102659401 has 8 divisors (see below), whose sum is σ = 112369544. Its totient is φ = 93208320.

The previous prime is 102659393. The next prime is 102659437. The reversal of 102659401 is 104956201.

It can be written as a sum of positive squares in 4 ways, for example, as 4946176 + 97713225 = 2224^2 + 9885^2 .

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 102659401 - 2³ = 102659393 is a prime.

It is a super-2 number, since 2×102659401² = 21077905227357602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102659401.

It is not an unprimeable number, because it can be changed into a prime (102659441) 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, 63936 + ... + 65521.

It is an arithmetic number, because the mean of its divisors is an integer number (14046193).

Almost surely, 2^102659401 is an apocalyptic number.

It is an amenable number.

102659401 is a deficient number, since it is larger than the sum of its proper divisors (9710143).

102659401 is a wasteful number, since it uses less digits than its factorization.

102659401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129531.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 102659401 is about 10132.0975617095. The cubic root of 102659401 is about 468.2375535048.

The spelling of 102659401 in words is "one hundred two million, six hundred fifty-nine thousand, four hundred one".