3140021661 has 32 divisors (see below), whose sum is σ = 4987699200. Its totient is φ = 1719157440.

The previous prime is 3140021657. The next prime is 3140021693. The reversal of 3140021661 is 1661200413.

It is not a de Polignac number, because 3140021661 - 2² = 3140021657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140021561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60100 + ... + 99458.

It is an arithmetic number, because the mean of its divisors is an integer number (155865600).

Almost surely, 2^3140021661 is an apocalyptic number.

It is an amenable number.

3140021661 is a deficient number, since it is larger than the sum of its proper divisors (1847677539).

3140021661 is a wasteful number, since it uses less digits than its factorization.

3140021661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39529.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 3140021661 is about 56035.8961827149. The cubic root of 3140021661 is about 1464.3477177101.

The spelling of 3140021661 in words is "three billion, one hundred forty million, twenty-one thousand, six hundred sixty-one".