140165436 has 24 divisors (see below), whose sum is σ = 327272400. Its totient is φ = 46690432.

The previous prime is 140165419. The next prime is 140165437. The reversal of 140165436 is 634561041.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140165437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21040 + ... + 26888.

It is an arithmetic number, because the mean of its divisors is an integer number (13636350).

Almost surely, 2^140165436 is an apocalyptic number.

It is an amenable number.

140165436 is an abundant number, since it is smaller than the sum of its proper divisors (187106964).

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

140165436 is a wasteful number, since it uses less digits than its factorization.

140165436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7853 (or 7851 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140165436 is about 11839.1484491073. The cubic root of 140165436 is about 519.4538595447.

The spelling of 140165436 in words is "one hundred forty million, one hundred sixty-five thousand, four hundred thirty-six".