140772169 has 4 divisors (see below), whose sum is σ = 140849280. Its totient is φ = 140695060.

The previous prime is 140772139. The next prime is 140772193. The reversal of 140772169 is 961277041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961277041 = 47 ⋅20452703.

It is a cyclic number.

It is not a de Polignac number, because 140772169 - 2¹³ = 140763977 is a prime.

It is a super-2 number, since 2×140772169² = 39633607129929122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140772109) 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, 35749 + ... + 39490.

It is an arithmetic number, because the mean of its divisors is an integer number (35212320).

Almost surely, 2^140772169 is an apocalyptic number.

It is an amenable number.

140772169 is a deficient number, since it is larger than the sum of its proper divisors (77111).

140772169 is an equidigital number, since it uses as much as digits as its factorization.

140772169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77110.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 140772169 is about 11864.7447928727. The cubic root of 140772169 is about 520.2022992465.

The spelling of 140772169 in words is "one hundred forty million, seven hundred seventy-two thousand, one hundred sixty-nine".