71496031 has 4 divisors (see below), whose sum is σ = 75259000. Its totient is φ = 67733064.

The previous prime is 71495989. The next prime is 71496037. The reversal of 71496031 is 13069417.

It is a happy number.

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 71496031 - 2⁷ = 71495903 is a prime.

It is a super-2 number, since 2×71496031² = 10223364897505922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71495984 and 71496002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71496037) 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, 1881456 + ... + 1881493.

It is an arithmetic number, because the mean of its divisors is an integer number (18814750).

Almost surely, 2^71496031 is an apocalyptic number.

71496031 is a deficient number, since it is larger than the sum of its proper divisors (3762969).

71496031 is a wasteful number, since it uses less digits than its factorization.

71496031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762968.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 71496031 is about 8455.5325674969. The cubic root of 71496031 is about 415.0438449829.

The spelling of 71496031 in words is "seventy-one million, four hundred ninety-six thousand, thirty-one".