140121419 has 4 divisors (see below), whose sum is σ = 140145600. Its totient is φ = 140097240.

The previous prime is 140121407. The next prime is 140121427. The reversal of 140121419 is 914121041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914121041 = 10301 ⋅88741.

It is a cyclic number.

It is not a de Polignac number, because 140121419 - 2²⁴ = 123344203 is a prime.

It is a super-2 number, since 2×140121419² = 39268024125147122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140121394 and 140121403.

It is not an unprimeable number, because it can be changed into a prime (140121439) 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, 2357 + ... + 16905.

It is an arithmetic number, because the mean of its divisors is an integer number (35036400).

Almost surely, 2^140121419 is an apocalyptic number.

140121419 is a deficient number, since it is larger than the sum of its proper divisors (24181).

140121419 is an equidigital number, since it uses as much as digits as its factorization.

140121419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24180.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 140121419 is about 11837.2893434266. The cubic root of 140121419 is about 519.3994781055.

The spelling of 140121419 in words is "one hundred forty million, one hundred twenty-one thousand, four hundred nineteen".