72154006 has 4 divisors (see below), whose sum is σ = 108231012. Its totient is φ = 36077002.

The previous prime is 72153979. The next prime is 72154009. The reversal of 72154006 is 60045127.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72154009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18038500 + ... + 18038503.

It is an arithmetic number, because the mean of its divisors is an integer number (27057753).

Almost surely, 2^72154006 is an apocalyptic number.

72154006 is a deficient number, since it is larger than the sum of its proper divisors (36077006).

72154006 is a wasteful number, since it uses less digits than its factorization.

72154006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36077005.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 72154006 is about 8494.3514172655. The cubic root of 72154006 is about 416.3131694780.

The spelling of 72154006 in words is "seventy-two million, one hundred fifty-four thousand, six".