140427555 has 16 divisors (see below), whose sum is σ = 224852640. Its totient is φ = 74838528.

The previous prime is 140427533. The next prime is 140427559. The reversal of 140427555 is 555724041.

It is not a de Polignac number, because 140427555 - 2⁵ = 140427523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140427559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24219 + ... + 29451.

It is an arithmetic number, because the mean of its divisors is an integer number (14053290).

Almost surely, 2^140427555 is an apocalyptic number.

140427555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140427555 is a deficient number, since it is larger than the sum of its proper divisors (84425085).

140427555 is a wasteful number, since it uses less digits than its factorization.

140427555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 140427555 is about 11850.2132892197. The cubic root of 140427555 is about 519.7774627162. Note that the first 3 decimals are identical.

The spelling of 140427555 in words is "one hundred forty million, four hundred twenty-seven thousand, five hundred fifty-five".