73070152 has 8 divisors (see below), whose sum is σ = 137006550. Its totient is φ = 36535072.

The previous prime is 73070119. The next prime is 73070161. The reversal of 73070152 is 25107037.

It can be written as a sum of positive squares in only one way, i.e., 47527236 + 25542916 = 6894^2 + 5054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×73070152² = 10678494226606208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4566877 + ... + 4566892.

Almost surely, 2^73070152 is an apocalyptic number.

It is an amenable number.

73070152 is a deficient number, since it is larger than the sum of its proper divisors (63936398).

73070152 is a wasteful number, since it uses less digits than its factorization.

73070152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133775 (or 9133771 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 73070152 is about 8548.1080947775. The cubic root of 73070152 is about 418.0677530338.

Adding to 73070152 its reverse (25107037), we get a palindrome (98177189).

The spelling of 73070152 in words is "seventy-three million, seventy thousand, one hundred fifty-two".