102401434 has 4 divisors (see below), whose sum is σ = 153602154. Its totient is φ = 51200716.

The previous prime is 102401419. The next prime is 102401443. The reversal of 102401434 is 434104201.

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

It can be written as a sum of positive squares in only one way, i.e., 102313225 + 88209 = 10115^2 + 297^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25600357 + ... + 25600360.

Almost surely, 2^102401434 is an apocalyptic number.

102401434 is a deficient number, since it is larger than the sum of its proper divisors (51200720).

102401434 is an equidigital number, since it uses as much as digits as its factorization.

102401434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51200719.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 102401434 is about 10119.3593670746. The cubic root of 102401434 is about 467.8450219796.

Adding to 102401434 its reverse (434104201), we get a palindrome (536505635).

The spelling of 102401434 in words is "one hundred two million, four hundred one thousand, four hundred thirty-four".