140432155 has 16 divisors (see below), whose sum is σ = 179850240. Its totient is φ = 104896512.

The previous prime is 140432153. The next prime is 140432191. The reversal of 140432155 is 551234041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 140432155 - 2¹ = 140432153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140432153) 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, 4291 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (11240640).

Almost surely, 2^140432155 is an apocalyptic number.

140432155 is a deficient number, since it is larger than the sum of its proper divisors (39418085).

140432155 is a wasteful number, since it uses less digits than its factorization.

140432155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13158.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 140432155 is about 11850.4073769639. The cubic root of 140432155 is about 519.7831381223.

Adding to 140432155 its reverse (551234041), we get a palindrome (691666196).

The spelling of 140432155 in words is "one hundred forty million, four hundred thirty-two thousand, one hundred fifty-five".