140314406 has 4 divisors (see below), whose sum is σ = 210471612. Its totient is φ = 70157202.

The previous prime is 140314399. The next prime is 140314409. The reversal of 140314406 is 604413041.

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

It is a super-2 number, since 2×140314406² = 39376265062265672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140314409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35078600 + ... + 35078603.

It is an arithmetic number, because the mean of its divisors is an integer number (52617903).

Almost surely, 2^140314406 is an apocalyptic number.

140314406 is a deficient number, since it is larger than the sum of its proper divisors (70157206).

140314406 is an equidigital number, since it uses as much as digits as its factorization.

140314406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70157205.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140314406 is about 11845.4381936676. The cubic root of 140314406 is about 519.6378222609.

Adding to 140314406 its reverse (604413041), we get a palindrome (744727447).

The spelling of 140314406 in words is "one hundred forty million, three hundred fourteen thousand, four hundred six".