2023139251 has 4 divisors (see below), whose sum is σ = 2312159152. Its totient is φ = 1734119352.

The previous prime is 2023139191. The next prime is 2023139257. The reversal of 2023139251 is 1529313202.

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

It is not a de Polignac number, because 2023139251 - 2¹¹ = 2023137203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023139257) 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, 144509940 + ... + 144509953.

It is an arithmetic number, because the mean of its divisors is an integer number (578039788).

Almost surely, 2^2023139251 is an apocalyptic number.

2023139251 is a deficient number, since it is larger than the sum of its proper divisors (289019901).

2023139251 is an equidigital number, since it uses as much as digits as its factorization.

2023139251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289019900.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2023139251 is about 44979.3202594259. The cubic root of 2023139251 is about 1264.7613689550.

The spelling of 2023139251 in words is "two billion, twenty-three million, one hundred thirty-nine thousand, two hundred fifty-one".