157846481 has 4 divisors (see below), whose sum is σ = 169988532. Its totient is φ = 145704432.

The previous prime is 157846459. The next prime is 157846489. The reversal of 157846481 is 184648751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93702400 + 64144081 = 9680^2 + 8009^2 .

It is a cyclic number.

It is not a de Polignac number, because 157846481 - 2¹⁴ = 157830097 is a prime.

It is a super-2 number, since 2×157846481² = 49831023128166722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157846489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071006 + ... + 6071031.

It is an arithmetic number, because the mean of its divisors is an integer number (42497133).

Almost surely, 2^157846481 is an apocalyptic number.

It is an amenable number.

157846481 is a deficient number, since it is larger than the sum of its proper divisors (12142051).

157846481 is a wasteful number, since it uses less digits than its factorization.

157846481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142050.

The product of its digits is 215040, while the sum is 44.

The square root of 157846481 is about 12563.6969479529. The cubic root of 157846481 is about 540.4368675518.

The spelling of 157846481 in words is "one hundred fifty-seven million, eight hundred forty-six thousand, four hundred eighty-one".