7139954 has 4 divisors (see below), whose sum is σ = 10709934. Its totient is φ = 3569976.

The previous prime is 7139947. The next prime is 7139971. The reversal of 7139954 is 4599317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4599317 = 1153 ⋅3989.

It can be written as a sum of positive squares in only one way, i.e., 4721929 + 2418025 = 2173^2 + 1555^2 .

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, 1784987 + ... + 1784990.

Almost surely, 2^7139954 is an apocalyptic number.

7139954 is a deficient number, since it is larger than the sum of its proper divisors (3569980).

7139954 is a wasteful number, since it uses less digits than its factorization.

7139954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569979.

The product of its digits is 34020, while the sum is 38.

The square root of 7139954 is about 2672.0692356299. The cubic root of 7139954 is about 192.5595835120.

The spelling of 7139954 in words is "seven million, one hundred thirty-nine thousand, nine hundred fifty-four".