140455251405 has 96 divisors (see below), whose sum is σ = 283005815040. Its totient is φ = 63108771840.

The previous prime is 140455251359. The next prime is 140455251473. The reversal of 140455251405 is 504152554041.

140455251405 is a `hidden beast` number, since 1 + 40 + 455 + 25 + 140 + 5 = 666.

It is not a de Polignac number, because 140455251405 - 2¹⁹ = 140454727117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140455251405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49823086 + ... + 49825904.

It is an arithmetic number, because the mean of its divisors is an integer number (2947977240).

Almost surely, 2^140455251405 is an apocalyptic number.

140455251405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140455251405 is an abundant number, since it is smaller than the sum of its proper divisors (142550563635).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140455251405 is a wasteful number, since it uses less digits than its factorization.

140455251405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491 (or 5488 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 140455251405 in words is "one hundred forty billion, four hundred fifty-five million, two hundred fifty-one thousand, four hundred five".