7481540148 has 12 divisors (see below), whose sum is σ = 17456927040. Its totient is φ = 2493846712.

The previous prime is 7481540113. The next prime is 7481540159. The reversal of 7481540148 is 8410451847.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7481540148² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311730828 + ... + 311730851.

It is an arithmetic number, because the mean of its divisors is an integer number (1454743920).

Almost surely, 2^7481540148 is an apocalyptic number.

It is an amenable number.

7481540148 is an abundant number, since it is smaller than the sum of its proper divisors (9975386892).

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

7481540148 is a wasteful number, since it uses less digits than its factorization.

7481540148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623461686 (or 623461684 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 7481540148 is about 86495.8967119250. The cubic root of 7481540148 is about 1955.8265483674.

The spelling of 7481540148 in words is "seven billion, four hundred eighty-one million, five hundred forty thousand, one hundred forty-eight".