2602138954 has 4 divisors (see below), whose sum is σ = 3903208434. Its totient is φ = 1301069476.

The previous prime is 2602138943. The next prime is 2602138963. The reversal of 2602138954 is 4598312062.

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., 2009459929 + 592679025 = 44827^2 + 24345^2 .

It is a super-2 number, since 2×2602138954² = 13542254271848428232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 650534737 + ... + 650534740.

Almost surely, 2^2602138954 is an apocalyptic number.

2602138954 is a deficient number, since it is larger than the sum of its proper divisors (1301069480).

2602138954 is a wasteful number, since it uses less digits than its factorization.

2602138954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301069479.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2602138954 is about 51011.1649935580. The cubic root of 2602138954 is about 1375.4458418010.

The spelling of 2602138954 in words is "two billion, six hundred two million, one hundred thirty-eight thousand, nine hundred fifty-four".