140701969 has 4 divisors (see below), whose sum is σ = 142282980. Its totient is φ = 139120960.

The previous prime is 140701949. The next prime is 140702021. The reversal of 140701969 is 969107041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969107041 = 7 ⋅138443863.

It can be written as a sum of positive squares in 2 ways, for example, as 75690000 + 65011969 = 8700^2 + 8063^2 .

It is a cyclic number.

It is not a de Polignac number, because 140701969 - 2¹⁷ = 140570897 is a prime.

It is a super-2 number, since 2×140701969² = 39594088160953922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140701949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790372 + ... + 790549.

It is an arithmetic number, because the mean of its divisors is an integer number (35570745).

Almost surely, 2^140701969 is an apocalyptic number.

It is an amenable number.

140701969 is a deficient number, since it is larger than the sum of its proper divisors (1581011).

140701969 is an equidigital number, since it uses as much as digits as its factorization.

140701969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581010.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 140701969 is about 11861.7860796762. The cubic root of 140701969 is about 520.1158137013.

The spelling of 140701969 in words is "one hundred forty million, seven hundred one thousand, nine hundred sixty-nine".