7151340 has 48 divisors (see below), whose sum is σ = 22885632. Its totient is φ = 1634496.

The previous prime is 7151329. The next prime is 7151341. The reversal of 7151340 is 431517.

It is a super-2 number, since 2×7151340² = 102283327591200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (7151341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8094 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (476784).

Almost surely, 2^7151340 is an apocalyptic number.

7151340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7151340 is an abundant number, since it is smaller than the sum of its proper divisors (15734292).

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

7151340 is a wasteful number, since it uses less digits than its factorization.

7151340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17046 (or 17044 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 7151340 is about 2674.1989454788. The cubic root of 7151340 is about 192.6618866457.

Adding to 7151340 its reverse (431517), we get a palindrome (7582857).

The spelling of 7151340 in words is "seven million, one hundred fifty-one thousand, three hundred forty".