102140434 has 32 divisors (see below), whose sum is σ = 171460800. Its totient is φ = 45240000.

The previous prime is 102140429. The next prime is 102140449. The reversal of 102140434 is 434041201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292492 + ... + 292840.

It is an arithmetic number, because the mean of its divisors is an integer number (5358150).

Almost surely, 2^102140434 is an apocalyptic number.

102140434 is a deficient number, since it is larger than the sum of its proper divisors (69320366).

102140434 is a wasteful number, since it uses less digits than its factorization.

102140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

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

The square root of 102140434 is about 10106.4550659467. The cubic root of 102140434 is about 467.4472038522.

Adding to 102140434 its reverse (434041201), we get a palindrome (536181635).

The spelling of 102140434 in words is "one hundred two million, one hundred forty thousand, four hundred thirty-four".