71922051 has 6 divisors (see below), whose sum is σ = 103887420. Its totient is φ = 47948028.

The previous prime is 71922023. The next prime is 71922061. The reversal of 71922051 is 15022917.

It is not a de Polignac number, because 71922051 - 2⁷ = 71921923 is a prime.

It is a super-3 number, since 3×71922051³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (71922061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3995661 + ... + 3995678.

It is an arithmetic number, because the mean of its divisors is an integer number (17314570).

Almost surely, 2^71922051 is an apocalyptic number.

71922051 is a deficient number, since it is larger than the sum of its proper divisors (31965369).

71922051 is a wasteful number, since it uses less digits than its factorization.

71922051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991345 (or 7991342 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 71922051 is about 8480.6869415160. The cubic root of 71922051 is about 415.8665803497.

Adding to 71922051 its reverse (15022917), we get a palindrome (86944968).

The spelling of 71922051 in words is "seventy-one million, nine hundred twenty-two thousand, fifty-one".