157842245 has 8 divisors (see below), whose sum is σ = 206629920. Its totient is φ = 114794320.

The previous prime is 157842239. The next prime is 157842257. The reversal of 157842245 is 542248751.

157842245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 157842245 - 2¹⁴ = 157825861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157842199 and 157842208.

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, 1434875 + ... + 1434984.

It is an arithmetic number, because the mean of its divisors is an integer number (25828740).

Almost surely, 2^157842245 is an apocalyptic number.

It is an amenable number.

157842245 is a deficient number, since it is larger than the sum of its proper divisors (48787675).

157842245 is a wasteful number, since it uses less digits than its factorization.

157842245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869875.

The product of its digits is 89600, while the sum is 38.

The square root of 157842245 is about 12563.5283658692. The cubic root of 157842245 is about 540.4320330843.

The spelling of 157842245 in words is "one hundred fifty-seven million, eight hundred forty-two thousand, two hundred forty-five".