2751538 has 4 divisors (see below), whose sum is σ = 4127310. Its totient is φ = 1375768.

The previous prime is 2751517. The next prime is 2751557. The reversal of 2751538 is 8351572.

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., 2601769 + 149769 = 1613^2 + 387^2 .

It is a super-2 number, since 2×2751538² = 15141922730888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687883 + ... + 687886.

2^2751538 is an apocalyptic number.

2751538 is a deficient number, since it is larger than the sum of its proper divisors (1375772).

2751538 is a wasteful number, since it uses less digits than its factorization.

2751538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375771.

The product of its digits is 8400, while the sum is 31.

The square root of 2751538 is about 1658.7760548067. The cubic root of 2751538 is about 140.1280800682.

It can be divided in two parts, 2 and 751538, that multiplied together give a square (1503076 = 1226²).

The spelling of 2751538 in words is "two million, seven hundred fifty-one thousand, five hundred thirty-eight".