140636414 has 4 divisors (see below), whose sum is σ = 210954624. Its totient is φ = 70318206.

The previous prime is 140636411. The next prime is 140636453. The reversal of 140636414 is 414636041.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140636411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35159102 + ... + 35159105.

It is an arithmetic number, because the mean of its divisors is an integer number (52738656).

Almost surely, 2^140636414 is an apocalyptic number.

140636414 is a deficient number, since it is larger than the sum of its proper divisors (70318210).

140636414 is an equidigital number, since it uses as much as digits as its factorization.

140636414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70318209.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140636414 is about 11859.0224723626. The cubic root of 140636414 is about 520.0350247612.

The spelling of 140636414 in words is "one hundred forty million, six hundred thirty-six thousand, four hundred fourteen".