140120145 has 64 divisors (see below), whose sum is σ = 273934080. Its totient is φ = 67392000.

The previous prime is 140120131. The next prime is 140120159. The reversal of 140120145 is 541021041.

It is an interprime number because it is at equal distance from previous prime (140120131) and next prime (140120159).

It is not a de Polignac number, because 140120145 - 2¹² = 140116049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 232845 + ... + 233445.

It is an arithmetic number, because the mean of its divisors is an integer number (4280220).

Almost surely, 2^140120145 is an apocalyptic number.

140120145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140120145 is a deficient number, since it is larger than the sum of its proper divisors (133813935).

140120145 is a wasteful number, since it uses less digits than its factorization.

140120145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 140120145 is about 11837.2355303086. The cubic root of 140120145 is about 519.3979039542.

Adding to 140120145 its reverse (541021041), we get a palindrome (681141186).

The spelling of 140120145 in words is "one hundred forty million, one hundred twenty thousand, one hundred forty-five".