140361121 has 4 divisors (see below), whose sum is σ = 141073812. Its totient is φ = 139648432.

The previous prime is 140361101. The next prime is 140361127. The reversal of 140361121 is 121163041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118374400 + 21986721 = 10880^2 + 4689^2 .

It is a cyclic number.

It is not a de Polignac number, because 140361121 - 2²⁷ = 6143393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140361127) 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, 356050 + ... + 356443.

It is an arithmetic number, because the mean of its divisors is an integer number (35268453).

Almost surely, 2^140361121 is an apocalyptic number.

It is an amenable number.

140361121 is a deficient number, since it is larger than the sum of its proper divisors (712691).

140361121 is an equidigital number, since it uses as much as digits as its factorization.

140361121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712690.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 140361121 is about 11847.4098857092. The cubic root of 140361121 is about 519.6954836898.

The spelling of 140361121 in words is "one hundred forty million, three hundred sixty-one thousand, one hundred twenty-one".