140344545 has 64 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 63613440.

The previous prime is 140344499. The next prime is 140344549. The reversal of 140344545 is 545443041.

It is not a de Polignac number, because 140344545 - 2⁸ = 140344289 is a prime.

It is a super-2 number, since 2×140344545² = 39393182622514050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140344549) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 278764 + ... + 279266.

It is an arithmetic number, because the mean of its divisors is an integer number (4082400).

Almost surely, 2^140344545 is an apocalyptic number.

140344545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140344545 is a deficient number, since it is larger than the sum of its proper divisors (120929055).

140344545 is a wasteful number, since it uses less digits than its factorization.

140344545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 140344545 is about 11846.7103028647. The cubic root of 140344545 is about 519.6750250058.

Adding to 140344545 its reverse (545443041), we get a palindrome (685787586).

The spelling of 140344545 in words is "one hundred forty million, three hundred forty-four thousand, five hundred forty-five".