140770249 has 4 divisors (see below), whose sum is σ = 143078020. Its totient is φ = 138462480.

The previous prime is 140770243. The next prime is 140770271. The reversal of 140770249 is 942077041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41409225 + 99361024 = 6435^2 + 9968^2 .

It is a cyclic number.

It is not a de Polignac number, because 140770249 - 2¹⁹ = 140245961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140770243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153794 + ... + 1153915.

It is an arithmetic number, because the mean of its divisors is an integer number (35769505).

Almost surely, 2^140770249 is an apocalyptic number.

It is an amenable number.

140770249 is a deficient number, since it is larger than the sum of its proper divisors (2307771).

140770249 is an equidigital number, since it uses as much as digits as its factorization.

140770249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307770.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 140770249 is about 11864.6638806163. The cubic root of 140770249 is about 520.1999342123.

The spelling of 140770249 in words is "one hundred forty million, seven hundred seventy thousand, two hundred forty-nine".