140122469 has 4 divisors (see below), whose sum is σ = 140165280. Its totient is φ = 140079660.

The previous prime is 140122459. The next prime is 140122481. The reversal of 140122469 is 964221041.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140122469 is a prime.

It is a super-2 number, since 2×140122469² = 39268612637311922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140122459) 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, 16049 + ... + 23190.

It is an arithmetic number, because the mean of its divisors is an integer number (35041320).

Almost surely, 2^140122469 is an apocalyptic number.

It is an amenable number.

140122469 is a deficient number, since it is larger than the sum of its proper divisors (42811).

140122469 is an equidigital number, since it uses as much as digits as its factorization.

140122469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42810.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 140122469 is about 11837.3336947135. Note that the first 3 decimals coincide. The cubic root of 140122469 is about 519.4007754757.

The spelling of 140122469 in words is "one hundred forty million, one hundred twenty-two thousand, four hundred sixty-nine".