71102049 has 16 divisors (see below), whose sum is σ = 97930560. Its totient is φ = 45852480.

The previous prime is 71102029. The next prime is 71102063. The reversal of 71102049 is 94020117.

It is not a de Polignac number, because 71102049 - 2¹² = 71097953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71102029) 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, 18322 + ... + 21860.

It is an arithmetic number, because the mean of its divisors is an integer number (6120660).

Almost surely, 2^71102049 is an apocalyptic number.

It is an amenable number.

71102049 is a deficient number, since it is larger than the sum of its proper divisors (26828511).

71102049 is a wasteful number, since it uses less digits than its factorization.

71102049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 71102049 is about 8432.2030929052. The cubic root of 71102049 is about 414.2800679090.

The spelling of 71102049 in words is "seventy-one million, one hundred two thousand, forty-nine".