157810077 has 12 divisors (see below), whose sum is σ = 228350460. Its totient is φ = 105020928.

The previous prime is 157810033. The next prime is 157810109. The reversal of 157810077 is 770018751.

157810077 is a `hidden beast` number, since 1 + 578 + 10 + 0 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 140991876 + 16818201 = 11874^2 + 4101^2 .

It is not a de Polignac number, because 157810077 - 2¹¹ = 157808029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157810007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10002 + ... + 20387.

It is an arithmetic number, because the mean of its divisors is an integer number (19029205).

Almost surely, 2^157810077 is an apocalyptic number.

It is an amenable number.

157810077 is a deficient number, since it is larger than the sum of its proper divisors (70540383).

157810077 is a wasteful number, since it uses less digits than its factorization.

157810077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30972 (or 30969 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 36.

The square root of 157810077 is about 12562.2480870265. The cubic root of 157810077 is about 540.3953175254.

The spelling of 157810077 in words is "one hundred fifty-seven million, eight hundred ten thousand, seventy-seven".