140000055 has 32 divisors (see below), whose sum is σ = 241812480. Its totient is φ = 68757120.

The previous prime is 140000053. The next prime is 140000059. The reversal of 140000055 is 550000041.

140000055 = T₂₅₉ + T₂₆₀ + ... + T₉₄₉.

140000055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140000055 - 2¹ = 140000053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 139999989 and 140000043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140000053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134226 + ... + 135264.

It is an arithmetic number, because the mean of its divisors is an integer number (7556640).

Almost surely, 2^140000055 is an apocalyptic number.

140000055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140000055 is a deficient number, since it is larger than the sum of its proper divisors (101812425).

140000055 is a wasteful number, since it uses less digits than its factorization.

140000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 140000055 is about 11832.1618903732. The cubic root of 140000055 is about 519.2494781820.

Adding to 140000055 its reverse (550000041), we get a palindrome (690000096).

The spelling of 140000055 in words is "one hundred forty million, fifty-five", and thus it is an aban number.