7149090 has 64 divisors (see below), whose sum is σ = 19305216. Its totient is φ = 1681152.

The previous prime is 7149059. The next prime is 7149097. The reversal of 7149090 is 909417.

It is a super-2 number, since 2×7149090² = 102218975656200, which contains 22 as substring.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7149097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8572 + ... + 9368.

It is an arithmetic number, because the mean of its divisors is an integer number (301644).

Almost surely, 2^7149090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7149090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9652608).

7149090 is an abundant number, since it is smaller than the sum of its proper divisors (12156126).

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

7149090 is a wasteful number, since it uses less digits than its factorization.

7149090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843.

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

The square root of 7149090 is about 2673.7782256575. The cubic root of 7149090 is about 192.6416790243.

The spelling of 7149090 in words is "seven million, one hundred forty-nine thousand, ninety".