64155002 has 8 divisors (see below), whose sum is σ = 97115700. Its totient is φ = 31783104.

The previous prime is 64154999. The next prime is 64155019. The reversal of 64155002 is 20055146.

It can be written as a sum of positive squares in 2 ways, for example, as 59613841 + 4541161 = 7721^2 + 2131^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146927 + ... + 147362.

Almost surely, 2^64155002 is an apocalyptic number.

64155002 is a deficient number, since it is larger than the sum of its proper divisors (32960698).

64155002 is a wasteful number, since it uses less digits than its factorization.

64155002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294400.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 64155002 is about 8009.6817664624. The cubic root of 64155002 is about 400.3226604889.

The spelling of 64155002 in words is "sixty-four million, one hundred fifty-five thousand, two".