75131148 has 24 divisors (see below), whose sum is σ = 179384128. Its totient is φ = 24461136.

The previous prime is 75131137. The next prime is 75131159. The reversal of 75131148 is 84113157.

It is an interprime number because it is at equal distance from previous prime (75131137) and next prime (75131159).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72286 + ... + 73317.

Almost surely, 2^75131148 is an apocalyptic number.

It is an amenable number.

75131148 is an abundant number, since it is smaller than the sum of its proper divisors (104252980).

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

75131148 is a wasteful number, since it uses less digits than its factorization.

75131148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145653 (or 145651 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 75131148 is about 8667.8225639430. The cubic root of 75131148 is about 421.9619995281.

Subtracting 75131148 from its reverse (84113157), we obtain a square (8982009 = 2997²).

The spelling of 75131148 in words is "seventy-five million, one hundred thirty-one thousand, one hundred forty-eight".