7149874 has 4 divisors (see below), whose sum is σ = 10724814. Its totient is φ = 3574936.

The previous prime is 7149851. The next prime is 7149899. The reversal of 7149874 is 4789417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4789417 = 2141 ⋅2237.

It can be written as a sum of positive squares in only one way, i.e., 6036849 + 1113025 = 2457^2 + 1055^2 .

It is a super-2 number, since 2×7149874² = 102241396431752, 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1787467 + ... + 1787470.

Almost surely, 2^7149874 is an apocalyptic number.

7149874 is a deficient number, since it is larger than the sum of its proper divisors (3574940).

7149874 is a wasteful number, since it uses less digits than its factorization.

7149874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574939.

The product of its digits is 56448, while the sum is 40.

The square root of 7149874 is about 2673.9248306562. The cubic root of 7149874 is about 192.6487207389.

The spelling of 7149874 in words is "seven million, one hundred forty-nine thousand, eight hundred seventy-four".