140434502421 has 8 divisors (see below), whose sum is σ = 193702762080. Its totient is φ = 90394622192.

The previous prime is 140434502407. The next prime is 140434502477. The reversal of 140434502421 is 124205434041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140434502421 - 2⁵ = 140434502389 is a prime.

It is a super-2 number, since 2×140434502421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140434502401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807094755 + ... + 807094928.

It is an arithmetic number, because the mean of its divisors is an integer number (24212845260).

Almost surely, 2^140434502421 is an apocalyptic number.

It is an amenable number.

140434502421 is a deficient number, since it is larger than the sum of its proper divisors (53268259659).

140434502421 is a wasteful number, since it uses less digits than its factorization.

140434502421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614189715.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 140434502421 its reverse (124205434041), we get a palindrome (264639936462).

The spelling of 140434502421 in words is "one hundred forty billion, four hundred thirty-four million, five hundred two thousand, four hundred twenty-one".