140605138590 has 32 divisors (see below), whose sum is σ = 385659809280. Its totient is φ = 32138317344.

The previous prime is 140605138559. The next prime is 140605138603. The reversal of 140605138590 is 95831506041.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334773930 + ... + 334774349.

It is an arithmetic number, because the mean of its divisors is an integer number (12051869040).

Almost surely, 2^140605138590 is an apocalyptic number.

140605138590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140605138590 is an abundant number, since it is smaller than the sum of its proper divisors (245054670690).

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

140605138590 is a wasteful number, since it uses less digits than its factorization.

140605138590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669548296.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 140605138590 in words is "one hundred forty billion, six hundred five million, one hundred thirty-eight thousand, five hundred ninety".