140545845 has 48 divisors (see below), whose sum is σ = 266760000. Its totient is φ = 67887360.

The previous prime is 140545841. The next prime is 140545871. The reversal of 140545845 is 548545041.

It is a happy number.

It is not a de Polignac number, because 140545845 - 2² = 140545841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140545841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246721 + ... + 247289.

It is an arithmetic number, because the mean of its divisors is an integer number (5557500).

Almost surely, 2^140545845 is an apocalyptic number.

140545845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140545845 is a deficient number, since it is larger than the sum of its proper divisors (126214155).

140545845 is a wasteful number, since it uses less digits than its factorization.

140545845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 140545845 is about 11855.2032880082. The cubic root of 140545845 is about 519.9233676520.

The spelling of 140545845 in words is "one hundred forty million, five hundred forty-five thousand, eight hundred forty-five".