7149955 has 8 divisors (see below), whose sum is σ = 8595072. Its totient is φ = 5709888.

The previous prime is 7149943. The next prime is 7149959. The reversal of 7149955 is 5599417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7149955 - 2⁷ = 7149827 is a prime.

It is a super-2 number, since 2×7149955² = 102243713004050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7149959) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3487 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (1074384).

Almost surely, 2^7149955 is an apocalyptic number.

7149955 is a deficient number, since it is larger than the sum of its proper divisors (1445117).

7149955 is a wasteful number, since it uses less digits than its factorization.

7149955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its digits is 56700, while the sum is 40.

The square root of 7149955 is about 2673.9399768880. The cubic root of 7149955 is about 192.6494482337.

The spelling of 7149955 in words is "seven million, one hundred forty-nine thousand, nine hundred fifty-five".