2956138 has 4 divisors (see below), whose sum is σ = 4434210. Its totient is φ = 1478068.

The previous prime is 2956133. The next prime is 2956157. The reversal of 2956138 is 8316592.

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., 2732409 + 223729 = 1653^2 + 473^2 .

It is not an unprimeable number, because it can be changed into a prime (2956133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739033 + ... + 739036.

2^2956138 is an apocalyptic number.

2956138 is a deficient number, since it is larger than the sum of its proper divisors (1478072).

2956138 is a wasteful number, since it uses less digits than its factorization.

2956138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478071.

The product of its digits is 12960, while the sum is 34.

The square root of 2956138 is about 1719.3423161197. The cubic root of 2956138 is about 143.5186150262.

The spelling of 2956138 in words is "two million, nine hundred fifty-six thousand, one hundred thirty-eight".