140021134 has 16 divisors (see below), whose sum is σ = 230134320. Its totient is φ = 63365760.

The previous prime is 140021107. The next prime is 140021137. The reversal of 140021134 is 431120041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140021137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8859 + ... + 18934.

It is an arithmetic number, because the mean of its divisors is an integer number (14383395).

Almost surely, 2^140021134 is an apocalyptic number.

140021134 is a deficient number, since it is larger than the sum of its proper divisors (90113186).

140021134 is a wasteful number, since it uses less digits than its factorization.

140021134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28035.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140021134 is about 11833.0526069988. The cubic root of 140021134 is about 519.2755370063.

Adding to 140021134 its reverse (431120041), we get a palindrome (571141175).

The spelling of 140021134 in words is "one hundred forty million, twenty-one thousand, one hundred thirty-four".