72163010 has 8 divisors (see below), whose sum is σ = 129893436. Its totient is φ = 28865200.

The previous prime is 72162989. The next prime is 72163031. The reversal of 72163010 is 1036127.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72162989) and next prime (72163031).

It can be written as a sum of positive squares in 2 ways, for example, as 70040161 + 2122849 = 8369^2 + 1457^2 .

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

It is an alternating number because its digits alternate between odd and even.

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, 3608141 + ... + 3608160.

Almost surely, 2^72163010 is an apocalyptic number.

72163010 is a deficient number, since it is larger than the sum of its proper divisors (57730426).

72163010 is a wasteful number, since it uses less digits than its factorization.

72163010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216308.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 72163010 is about 8494.8813999961. The cubic root of 72163010 is about 416.3304858086.

Adding to 72163010 its reverse (1036127), we get a palindrome (73199137).

The spelling of 72163010 in words is "seventy-two million, one hundred sixty-three thousand, ten".