71454072 has 16 divisors (see below), whose sum is σ = 178635240. Its totient is φ = 23818016.

The previous prime is 71454037. The next prime is 71454107. The reversal of 71454072 is 27045417.

It is an interprime number because it is at equal distance from previous prime (71454037) and next prime (71454107).

It is a super-3 number, since 3×71454072³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1488603 + ... + 1488650.

Almost surely, 2^71454072 is an apocalyptic number.

It is an amenable number.

71454072 is an abundant number, since it is smaller than the sum of its proper divisors (107181168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71454072 is a wasteful number, since it uses less digits than its factorization.

71454072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977262 (or 2977258 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 71454072 is about 8453.0510468114. The cubic root of 71454072 is about 414.9626365936.

Adding to 71454072 its reverse (27045417), we get a palindrome (98499489).

The spelling of 71454072 in words is "seventy-one million, four hundred fifty-four thousand, seventy-two".