140613121 has 4 divisors (see below), whose sum is σ = 153396144. Its totient is φ = 127830100.

The previous prime is 140613119. The next prime is 140613131. The reversal of 140613121 is 121316041.

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 not a de Polignac number, because 140613121 - 2¹ = 140613119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140613131) 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, 6391495 + ... + 6391516.

It is an arithmetic number, because the mean of its divisors is an integer number (38349036).

Almost surely, 2^140613121 is an apocalyptic number.

140613121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140613121 is a deficient number, since it is larger than the sum of its proper divisors (12783023).

140613121 is a wasteful number, since it uses less digits than its factorization.

140613121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12783022.

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

The square root of 140613121 is about 11858.0403524360. The cubic root of 140613121 is about 520.0063127932.

Adding to 140613121 its reverse (121316041), we get a palindrome (261929162).

The spelling of 140613121 in words is "one hundred forty million, six hundred thirteen thousand, one hundred twenty-one".