7149900 has 36 divisors (see below), whose sum is σ = 20687912. Its totient is φ = 1906560.

The previous prime is 7149899. The next prime is 7149907. The reversal of 7149900 is 99417.

7149900 = T₁₂₅₆ + T₁₂₅₇ + ... + T₁₂₆₄.

7149900 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7149900² = 102242140020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (7149907) 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 11 ways as a sum of consecutive naturals, for example, 11617 + ... + 12216.

Almost surely, 2^7149900 is an apocalyptic number.

It is an amenable number.

7149900 is an abundant number, since it is smaller than the sum of its proper divisors (13538012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7149900 is a wasteful number, since it uses less digits than its factorization.

7149900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23850 (or 23843 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 7149900 is about 2673.9296924190. The cubic root of 7149900 is about 192.6489542564.

The spelling of 7149900 in words is "seven million, one hundred forty-nine thousand, nine hundred".