71529154 has 4 divisors (see below), whose sum is σ = 107293734. Its totient is φ = 35764576.

The previous prime is 71529083. The next prime is 71529169. The reversal of 71529154 is 45192517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45192517 = 53 ⋅852689.

It can be written as a sum of positive squares in only one way, i.e., 65983129 + 5546025 = 8123^2 + 2355^2 .

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 as a sum of consecutive naturals, namely, 17882287 + ... + 17882290.

Almost surely, 2^71529154 is an apocalyptic number.

71529154 is a deficient number, since it is larger than the sum of its proper divisors (35764580).

71529154 is a wasteful number, since it uses less digits than its factorization.

71529154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35764579.

The product of its digits is 12600, while the sum is 34.

The square root of 71529154 is about 8457.4909991084. The cubic root of 71529154 is about 415.1079295418.

The spelling of 71529154 in words is "seventy-one million, five hundred twenty-nine thousand, one hundred fifty-four".