157724085 has 8 divisors (see below), whose sum is σ = 252358560. Its totient is φ = 84119504.

The previous prime is 157724071. The next prime is 157724093. The reversal of 157724085 is 580427751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157724085 - 2¹³ = 157715893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5257455 + ... + 5257484.

It is an arithmetic number, because the mean of its divisors is an integer number (31544820).

Almost surely, 2^157724085 is an apocalyptic number.

157724085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157724085 is a deficient number, since it is larger than the sum of its proper divisors (94634475).

157724085 is a wasteful number, since it uses less digits than its factorization.

157724085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514947.

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 157724085 is about 12558.8249848463. The cubic root of 157724085 is about 540.2971444172.

The spelling of 157724085 in words is "one hundred fifty-seven million, seven hundred twenty-four thousand, eighty-five".