140903892 has 36 divisors (see below), whose sum is σ = 362898900. Its totient is φ = 46081152.

The previous prime is 140903891. The next prime is 140903899. The reversal of 140903892 is 298309041.

It can be written as a sum of positive squares in 2 ways, for example, as 114832656 + 26071236 = 10716^2 + 5106^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140903891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35017 + ... + 38832.

It is an arithmetic number, because the mean of its divisors is an integer number (10080525).

Almost surely, 2^140903892 is an apocalyptic number.

140903892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140903892 is an abundant number, since it is smaller than the sum of its proper divisors (221995008).

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

140903892 is a wasteful number, since it uses less digits than its factorization.

140903892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73912 (or 73907 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 140903892 is about 11870.2945203563. The cubic root of 140903892 is about 520.3645028185.

The spelling of 140903892 in words is "one hundred forty million, nine hundred three thousand, eight hundred ninety-two".