102455401 has 4 divisors (see below), whose sum is σ = 102986452. Its totient is φ = 101924352.

The previous prime is 102455393. The next prime is 102455407. The reversal of 102455401 is 104554201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104554201 = 541 ⋅193261.

It can be written as a sum of positive squares in 2 ways, for example, as 41615401 + 60840000 = 6451^2 + 7800^2 .

It is a cyclic number.

It is not a de Polignac number, because 102455401 - 2³ = 102455393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102455407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265236 + ... + 265621.

It is an arithmetic number, because the mean of its divisors is an integer number (25746613).

Almost surely, 2^102455401 is an apocalyptic number.

It is an amenable number.

102455401 is a deficient number, since it is larger than the sum of its proper divisors (531051).

102455401 is an equidigital number, since it uses as much as digits as its factorization.

102455401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531050.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 102455401 is about 10122.0255383989. The cubic root of 102455401 is about 467.9271945210.

The spelling of 102455401 in words is "one hundred two million, four hundred fifty-five thousand, four hundred one".