2734720531 has 4 divisors (see below), whose sum is σ = 2735595432. Its totient is φ = 2733845632.

The previous prime is 2734720523. The next prime is 2734720537. The reversal of 2734720531 is 1350274372.

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

It is a cyclic number.

It is not a de Polignac number, because 2734720531 - 2³ = 2734720523 is a prime.

It is a super-2 number, since 2×2734720531² = 14957392765345843922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2734720537) 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, 432745 + ... + 439018.

It is an arithmetic number, because the mean of its divisors is an integer number (683898858).

Almost surely, 2^2734720531 is an apocalyptic number.

2734720531 is a deficient number, since it is larger than the sum of its proper divisors (874901).

2734720531 is an equidigital number, since it uses as much as digits as its factorization.

2734720531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874900.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 2734720531 is about 52294.5554623041. Note that the first 3 decimals coincide. The cubic root of 2734720531 is about 1398.4200767146.

The spelling of 2734720531 in words is "two billion, seven hundred thirty-four million, seven hundred twenty thousand, five hundred thirty-one".