148057581 has 16 divisors (see below), whose sum is σ = 232890368. Its totient is φ = 81874800.

The previous prime is 148057571. The next prime is 148057583. The reversal of 148057581 is 185750841.

It is not a de Polignac number, because 148057581 - 2⁵ = 148057549 is a prime.

It is a super-2 number, since 2×148057581² = 43842094583143122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148057583) 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, 113065 + ... + 114366.

It is an arithmetic number, because the mean of its divisors is an integer number (14555648).

Almost surely, 2^148057581 is an apocalyptic number.

It is an amenable number.

148057581 is a deficient number, since it is larger than the sum of its proper divisors (84832787).

148057581 is a wasteful number, since it uses less digits than its factorization.

148057581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227472.

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 148057581 is about 12167.8913949788. The cubic root of 148057581 is about 529.0258372201.

The spelling of 148057581 in words is "one hundred forty-eight million, fifty-seven thousand, five hundred eighty-one".