140758121 has 12 divisors (see below), whose sum is σ = 162297408. Its totient is φ = 119581752.

The previous prime is 140758103. The next prime is 140758127. The reversal of 140758121 is 121857041.

It is a de Polignac number, because none of the positive numbers 2^k-140758121 is a prime.

It is a super-3 number, since 3×140758121³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140758127) 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 11 ways as a sum of consecutive naturals, for example, 405470 + ... + 405816.

It is an arithmetic number, because the mean of its divisors is an integer number (13524784).

Almost surely, 2^140758121 is an apocalyptic number.

It is an amenable number.

140758121 is a deficient number, since it is larger than the sum of its proper divisors (21539287).

140758121 is an frugal number, since it uses more digits than its factorization.

140758121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 140758121 is about 11864.1527721115. The cubic root of 140758121 is about 520.1849945831.

The spelling of 140758121 in words is "one hundred forty million, seven hundred fifty-eight thousand, one hundred twenty-one".