181451051 has 2 divisors, whose sum is σ = 181451052. Its totient is φ = 181451050.

The previous prime is 181451041. The next prime is 181451059. The reversal of 181451051 is 150154181.

181451051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181451051 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 181451051.

It is not a weakly prime, because it can be changed into another prime (181451059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90725525 + 90725526.

It is an arithmetic number, because the mean of its divisors is an integer number (90725526).

Almost surely, 2^181451051 is an apocalyptic number.

181451051 is a deficient number, since it is larger than the sum of its proper divisors (1).

181451051 is an equidigital number, since it uses as much as digits as its factorization.

181451051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 181451051 is about 13470.3767950269. The cubic root of 181451051 is about 566.1347710634.

The spelling of 181451051 in words is "one hundred eighty-one million, four hundred fifty-one thousand, fifty-one".