102742401 has 16 divisors (see below), whose sum is σ = 143009280. Its totient is φ = 65535360.

The previous prime is 102742399. The next prime is 102742429. The reversal of 102742401 is 104247201.

It is a happy number.

It is not a de Polignac number, because 102742401 - 2¹ = 102742399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102743401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2071 + ... + 14483.

It is an arithmetic number, because the mean of its divisors is an integer number (8938080).

Almost surely, 2^102742401 is an apocalyptic number.

It is an amenable number.

102742401 is a deficient number, since it is larger than the sum of its proper divisors (40266879).

102742401 is a wasteful number, since it uses less digits than its factorization.

102742401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12536.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 102742401 is about 10136.1926283985. The cubic root of 102742401 is about 468.3637093415.

Adding to 102742401 its reverse (104247201), we get a palindrome (206989602).

The spelling of 102742401 in words is "one hundred two million, seven hundred forty-two thousand, four hundred one".