140277921 has 8 divisors (see below), whose sum is σ = 213756864. Its totient is φ = 80158800.

The previous prime is 140277913. The next prime is 140277923. The reversal of 140277921 is 129772041.

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

It is not a de Polignac number, because 140277921 - 2³ = 140277913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140277923) 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, 3339930 + ... + 3339971.

It is an arithmetic number, because the mean of its divisors is an integer number (26719608).

Almost surely, 2^140277921 is an apocalyptic number.

It is an amenable number.

140277921 is a deficient number, since it is larger than the sum of its proper divisors (73478943).

140277921 is an equidigital number, since it uses as much as digits as its factorization.

140277921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679911.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 140277921 is about 11843.8980492066. The cubic root of 140277921 is about 519.5927790612.

The spelling of 140277921 in words is "one hundred forty million, two hundred seventy-seven thousand, nine hundred twenty-one".