148557131 has 4 divisors (see below), whose sum is σ = 152011992. Its totient is φ = 145102272.

The previous prime is 148557127. The next prime is 148557137. The reversal of 148557131 is 131755841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148557131 - 2² = 148557127 is a prime.

It is a super-2 number, since 2×148557131² = 44138442341902322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148557091 and 148557100.

It is not an unprimeable number, because it can be changed into a prime (148557137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1727366 + ... + 1727451.

It is an arithmetic number, because the mean of its divisors is an integer number (38002998).

Almost surely, 2^148557131 is an apocalyptic number.

148557131 is a deficient number, since it is larger than the sum of its proper divisors (3454861).

148557131 is an equidigital number, since it uses as much as digits as its factorization.

148557131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454860.

The product of its digits is 16800, while the sum is 35.

The square root of 148557131 is about 12188.4014948639. The cubic root of 148557131 is about 529.6201514677.

The spelling of 148557131 in words is "one hundred forty-eight million, five hundred fifty-seven thousand, one hundred thirty-one".