71235490 has 8 divisors (see below), whose sum is σ = 128223900. Its totient is φ = 28494192.

The previous prime is 71235481. The next prime is 71235523. The reversal of 71235490 is 9453217.

It can be written as a sum of positive squares in 2 ways, for example, as 71216721 + 18769 = 8439^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3561765 + ... + 3561784.

Almost surely, 2^71235490 is an apocalyptic number.

71235490 is a deficient number, since it is larger than the sum of its proper divisors (56988410).

71235490 is a wasteful number, since it uses less digits than its factorization.

71235490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123556.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 71235490 is about 8440.1119660820. Note that the first 3 decimals coincide. The cubic root of 71235490 is about 414.5390730985.

The spelling of 71235490 in words is "seventy-one million, two hundred thirty-five thousand, four hundred ninety".