140161922 has 8 divisors (see below), whose sum is σ = 210309372. Its totient is φ = 70058800.

The previous prime is 140161913. The next prime is 140161933. The reversal of 140161922 is 229161041.

It is a Cunningham number, because it is equal to 11839²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 140161921 + 1 = 11839^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140161891 and 140161900.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529 + ... + 16812.

Almost surely, 2^140161922 is an apocalyptic number.

140161922 is a deficient number, since it is larger than the sum of its proper divisors (70147450).

140161922 is a wasteful number, since it uses less digits than its factorization.

140161922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22164.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 140161922 is about 11839.0000422333. Note that the first 4 decimals coincide. The cubic root of 140161922 is about 519.4495185408.

The spelling of 140161922 in words is "one hundred forty million, one hundred sixty-one thousand, nine hundred twenty-two".