64137002 has 4 divisors (see below), whose sum is σ = 96205506. Its totient is φ = 32068500.

The previous prime is 64137001. The next prime is 64137013. The reversal of 64137002 is 20073146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20073146 = 2 ⋅10036573.

It can be written as a sum of positive squares in only one way, i.e., 62742241 + 1394761 = 7921^2 + 1181^2 .

It is a super-2 number, since 2×64137002² = 8227110051096008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64137001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16034249 + ... + 16034252.

Almost surely, 2^64137002 is an apocalyptic number.

64137002 is a deficient number, since it is larger than the sum of its proper divisors (32068504).

64137002 is a wasteful number, since it uses less digits than its factorization.

64137002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32068503.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 64137002 is about 8008.5580474889. The cubic root of 64137002 is about 400.2852174126.

The spelling of 64137002 in words is "sixty-four million, one hundred thirty-seven thousand, two".