140554728 has 48 divisors (see below), whose sum is σ = 387862020. Its totient is φ = 45966336.

The previous prime is 140554699. The next prime is 140554741. The reversal of 140554728 is 827455041.

It can be written as a sum of positive squares in 2 ways, for example, as 133679844 + 6874884 = 11562^2 + 2622^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 140554692 and 140554701.

It is an unprimeable number.

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, 14601 + ... + 22232.

Almost surely, 2^140554728 is an apocalyptic number.

140554728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140554728 is an abundant number, since it is smaller than the sum of its proper divisors (247307292).

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

140554728 is a wasteful number, since it uses less digits than its factorization.

140554728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36898 (or 36891 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 140554728 is about 11855.5779277098. The cubic root of 140554728 is about 519.9343210933.

The spelling of 140554728 in words is "one hundred forty million, five hundred fifty-four thousand, seven hundred twenty-eight".