140522069 has 2 divisors, whose sum is σ = 140522070. Its totient is φ = 140522068.

The previous prime is 140522033. The next prime is 140522087. The reversal of 140522069 is 960225041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99241444 + 41280625 = 9962^2 + 6425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140522069 is a prime.

It is a super-2 number, since 2×140522069² = 39492903752081522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140522009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70261034 + 70261035.

It is an arithmetic number, because the mean of its divisors is an integer number (70261035).

Almost surely, 2^140522069 is an apocalyptic number.

It is an amenable number.

140522069 is a deficient number, since it is larger than the sum of its proper divisors (1).

140522069 is an equidigital number, since it uses as much as digits as its factorization.

140522069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 140522069 is about 11854.2004791551. The cubic root of 140522069 is about 519.8940476933.

The spelling of 140522069 in words is "one hundred forty million, five hundred twenty-two thousand, sixty-nine".