72074134 has 36 divisors (see below), whose sum is σ = 124444908. Its totient is φ = 31280920.

The previous prime is 72074081. The next prime is 72074137. The reversal of 72074134 is 43147027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72074137) by changing a digit.

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 in 17 ways as a sum of consecutive naturals, for example, 127737 + ... + 128299.

It is an arithmetic number, because the mean of its divisors is an integer number (3456803).

Almost surely, 2^72074134 is an apocalyptic number.

72074134 is a deficient number, since it is larger than the sum of its proper divisors (52370774).

72074134 is a wasteful number, since it uses less digits than its factorization.

72074134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 72074134 is about 8489.6486381946. The cubic root of 72074134 is about 416.1594979801.

The spelling of 72074134 in words is "seventy-two million, seventy-four thousand, one hundred thirty-four".