140554225531 has 4 divisors (see below), whose sum is σ = 142936500600. Its totient is φ = 138171950464.

The previous prime is 140554225423. The next prime is 140554225541. The reversal of 140554225531 is 135522455041.

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

It is a cyclic number.

It is not a de Polignac number, because 140554225531 - 2⁷ = 140554225403 is a prime.

It is a super-2 number, since 2×140554225531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140554225541) 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, 1191137446 + ... + 1191137563.

It is an arithmetic number, because the mean of its divisors is an integer number (35734125150).

Almost surely, 2^140554225531 is an apocalyptic number.

140554225531 is a deficient number, since it is larger than the sum of its proper divisors (2382275069).

140554225531 is an equidigital number, since it uses as much as digits as its factorization.

140554225531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382275068.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 140554225531 in words is "one hundred forty billion, five hundred fifty-four million, two hundred twenty-five thousand, five hundred thirty-one".