148228557 has 16 divisors (see below), whose sum is σ = 208528320. Its totient is φ = 93398400.

The previous prime is 148228547. The next prime is 148228579. The reversal of 148228557 is 755822841.

It is not a de Polignac number, because 148228557 - 2¹⁴ = 148212173 is a prime.

It is a super-2 number, since 2×148228557² = 43943410220604498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148228547) 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, 23457 + ... + 29097.

It is an arithmetic number, because the mean of its divisors is an integer number (13033020).

Almost surely, 2^148228557 is an apocalyptic number.

It is an amenable number.

148228557 is a deficient number, since it is larger than the sum of its proper divisors (60299763).

148228557 is a wasteful number, since it uses less digits than its factorization.

148228557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124.

The product of its digits is 179200, while the sum is 42.

The square root of 148228557 is about 12174.9150715724. The cubic root of 148228557 is about 529.2293974970.

It can be divided in two parts, 148228 and 557, that added together give a triangular number (148785 = T₅₄₅).

The spelling of 148228557 in words is "one hundred forty-eight million, two hundred twenty-eight thousand, five hundred fifty-seven".