71402123 has 4 divisors (see below), whose sum is σ = 76894608. Its totient is φ = 65909640.

The previous prime is 71402113. The next prime is 71402129. The reversal of 71402123 is 32120417.

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 71402123 - 2¹⁴ = 71385739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71402095 and 71402104.

It is not an unprimeable number, because it can be changed into a prime (71402129) 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, 2746223 + ... + 2746248.

It is an arithmetic number, because the mean of its divisors is an integer number (19223652).

Almost surely, 2^71402123 is an apocalyptic number.

71402123 is a deficient number, since it is larger than the sum of its proper divisors (5492485).

71402123 is a wasteful number, since it uses less digits than its factorization.

71402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492484.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 71402123 is about 8449.9776922782. The cubic root of 71402123 is about 414.8620492762.

The spelling of 71402123 in words is "seventy-one million, four hundred two thousand, one hundred twenty-three".