140641067 has 16 divisors (see below), whose sum is σ = 168268800. Its totient is φ = 114931872.

The previous prime is 140641063. The next prime is 140641069. The reversal of 140641067 is 760146041.

It is a cyclic number.

It is not a de Polignac number, because 140641067 - 2² = 140641063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140641063) 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, 54938 + ... + 57440.

It is an arithmetic number, because the mean of its divisors is an integer number (10516800).

Almost surely, 2^140641067 is an apocalyptic number.

140641067 is a deficient number, since it is larger than the sum of its proper divisors (27627733).

140641067 is a wasteful number, since it uses less digits than its factorization.

140641067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 140641067 is about 11859.2186504845. The cubic root of 140641067 is about 520.0407598720.

The spelling of 140641067 in words is "one hundred forty million, six hundred forty-one thousand, sixty-seven".