137604002 has 4 divisors (see below), whose sum is σ = 206406006. Its totient is φ = 68802000.

The previous prime is 137603993. The next prime is 137604029. The reversal of 137604002 is 200406731.

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

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 53129521 = 9191^2 + 7289^2 .

It is a super-2 number, since 2×137604002² = 37869722732832008, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34400999 + ... + 34401002.

Almost surely, 2^137604002 is an apocalyptic number.

137604002 is a deficient number, since it is larger than the sum of its proper divisors (68802004).

137604002 is an equidigital number, since it uses as much as digits as its factorization.

137604002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68802003.

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

The square root of 137604002 is about 11730.4732214860. The cubic root of 137604002 is about 516.2701572917.

The spelling of 137604002 in words is "one hundred thirty-seven million, six hundred four thousand, two".