140305450 has 12 divisors (see below), whose sum is σ = 260968230. Its totient is φ = 56122160.

The previous prime is 140305427. The next prime is 140305493. The reversal of 140305450 is 54503041.

It can be written as a sum of positive squares in 3 ways, for example, as 136960209 + 3345241 = 11703^2 + 1829^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1403005 + ... + 1403104.

Almost surely, 2^140305450 is an apocalyptic number.

140305450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140305450 is a deficient number, since it is larger than the sum of its proper divisors (120662780).

140305450 is a wasteful number, since it uses less digits than its factorization.

140305450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806121 (or 2806116 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 140305450 is about 11845.0601518101. The cubic root of 140305450 is about 519.6267661965.

Adding to 140305450 its reverse (54503041), we get a palindrome (194808491).

The spelling of 140305450 in words is "one hundred forty million, three hundred five thousand, four hundred fifty".