2151130531 has 16 divisors (see below), whose sum is σ = 2423658240. Its totient is φ = 1892026080.

The previous prime is 2151130529. The next prime is 2151130537. The reversal of 2151130531 is 1350311512.

It is not a de Polignac number, because 2151130531 - 2¹ = 2151130529 is a prime.

It is a super-2 number, since 2×2151130531² = 9254725122800683922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151130537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58090 + ... + 87616.

It is an arithmetic number, because the mean of its divisors is an integer number (151478640).

Almost surely, 2^2151130531 is an apocalyptic number.

2151130531 is a deficient number, since it is larger than the sum of its proper divisors (272527709).

2151130531 is a wasteful number, since it uses less digits than its factorization.

2151130531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29754.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2151130531 is about 46380.2817046210. The cubic root of 2151130531 is about 1290.8890634214.

The spelling of 2151130531 in words is "two billion, one hundred fifty-one million, one hundred thirty thousand, five hundred thirty-one".