140421134 has 32 divisors (see below), whose sum is σ = 261580800. Its totient is φ = 55170720.

The previous prime is 140421119. The next prime is 140421163. The reversal of 140421134 is 431124041.

It is a Curzon number.

It is a congruent number.

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, 269 + ... + 16760.

It is an arithmetic number, because the mean of its divisors is an integer number (8174400).

Almost surely, 2^140421134 is an apocalyptic number.

140421134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140421134 is a deficient number, since it is larger than the sum of its proper divisors (121159666).

140421134 is a wasteful number, since it uses less digits than its factorization.

140421134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17088.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 140421134 is about 11849.9423627290. The cubic root of 140421134 is about 519.7695403823.

Adding to 140421134 its reverse (431124041), we get a palindrome (571545175).

The spelling of 140421134 in words is "one hundred forty million, four hundred twenty-one thousand, one hundred thirty-four".