157123082 has 4 divisors (see below), whose sum is σ = 235684626. Its totient is φ = 78561540.

The previous prime is 157123079. The next prime is 157123121. The reversal of 157123082 is 280321751.

157123082 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280321751 = 3511 ⋅79841.

It can be written as a sum of positive squares in only one way, i.e., 149108521 + 8014561 = 12211^2 + 2831^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39280769 + ... + 39280772.

Almost surely, 2^157123082 is an apocalyptic number.

157123082 is a deficient number, since it is larger than the sum of its proper divisors (78561544).

157123082 is an equidigital number, since it uses as much as digits as its factorization.

157123082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78561543.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 157123082 is about 12534.8746304062. The cubic root of 157123082 is about 539.6100087659.

The spelling of 157123082 in words is "one hundred fifty-seven million, one hundred twenty-three thousand, eighty-two".