140531054 has 4 divisors (see below), whose sum is σ = 210796584. Its totient is φ = 70265526.

The previous prime is 140531047. The next prime is 140531077. The reversal of 140531054 is 450135041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450135041 = 1453 ⋅309797.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35132762 + ... + 35132765.

It is an arithmetic number, because the mean of its divisors is an integer number (52699146).

Almost surely, 2^140531054 is an apocalyptic number.

140531054 is a deficient number, since it is larger than the sum of its proper divisors (70265530).

140531054 is an equidigital number, since it uses as much as digits as its factorization.

140531054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70265529.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 140531054 is about 11854.5794526841. The cubic root of 140531054 is about 519.9051281556.

Adding to 140531054 its reverse (450135041), we get a palindrome (590666095).

The spelling of 140531054 in words is "one hundred forty million, five hundred thirty-one thousand, fifty-four".