140762721 has 8 divisors (see below), whose sum is σ = 204745824. Its totient is φ = 85310720.

The previous prime is 140762719. The next prime is 140762747. The reversal of 140762721 is 127267041.

140762721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140762721 - 2¹ = 140762719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140762701) 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, 2132736 + ... + 2132801.

It is an arithmetic number, because the mean of its divisors is an integer number (25593228).

Almost surely, 2^140762721 is an apocalyptic number.

140762721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140762721 is a deficient number, since it is larger than the sum of its proper divisors (63983103).

140762721 is a wasteful number, since it uses less digits than its factorization.

140762721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265551.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 140762721 is about 11864.3466318209. The cubic root of 140762721 is about 520.1906611002.

The spelling of 140762721 in words is "one hundred forty million, seven hundred sixty-two thousand, seven hundred twenty-one".