2951420729 has 4 divisors (see below), whose sum is σ = 2972964084. Its totient is φ = 2929877376.

The previous prime is 2951420701. The next prime is 2951420753. The reversal of 2951420729 is 9270241592.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1105429504 + 1845991225 = 33248^2 + 42965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2951420729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2951422729) 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, 10771472 + ... + 10771745.

It is an arithmetic number, because the mean of its divisors is an integer number (743241021).

Almost surely, 2^2951420729 is an apocalyptic number.

It is an amenable number.

2951420729 is a deficient number, since it is larger than the sum of its proper divisors (21543355).

2951420729 is a wasteful number, since it uses less digits than its factorization.

2951420729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21543354.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2951420729 is about 54326.9797522373. The cubic root of 2951420729 is about 1434.4223421697.

The spelling of 2951420729 in words is "two billion, nine hundred fifty-one million, four hundred twenty thousand, seven hundred twenty-nine".