140122461 has 32 divisors (see below), whose sum is σ = 200027520. Its totient is φ = 87091200.

The previous prime is 140122459. The next prime is 140122481. The reversal of 140122461 is 164221041.

It is a happy number.

It is not a de Polignac number, because 140122461 - 2¹ = 140122459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140122481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581301 + ... + 581541.

It is an arithmetic number, because the mean of its divisors is an integer number (6250860).

Almost surely, 2^140122461 is an apocalyptic number.

It is an amenable number.

140122461 is a deficient number, since it is larger than the sum of its proper divisors (59905059).

140122461 is a wasteful number, since it uses less digits than its factorization.

140122461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 140122461 is about 11837.3333567996. Note that the first 4 decimals coincide. The cubic root of 140122461 is about 519.4007655910.

The spelling of 140122461 in words is "one hundred forty million, one hundred twenty-two thousand, four hundred sixty-one".