148291057 has 4 divisors (see below), whose sum is σ = 149730880. Its totient is φ = 146851236.

The previous prime is 148291021. The next prime is 148291069. The reversal of 148291057 is 750192841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750192841 = 601 ⋅1248241.

It is a cyclic number.

It is not a de Polignac number, because 148291057 - 2¹⁵ = 148258289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148291457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719757 + ... + 719962.

It is an arithmetic number, because the mean of its divisors is an integer number (37432720).

Almost surely, 2^148291057 is an apocalyptic number.

It is an amenable number.

148291057 is a deficient number, since it is larger than the sum of its proper divisors (1439823).

148291057 is a wasteful number, since it uses less digits than its factorization.

148291057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439822.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 148291057 is about 12177.4815540817. The cubic root of 148291057 is about 529.3037695573.

The spelling of 148291057 in words is "one hundred forty-eight million, two hundred ninety-one thousand, fifty-seven".