157758897 has 8 divisors (see below), whose sum is σ = 211289344. Its totient is φ = 104700528.

The previous prime is 157758893. The next prime is 157758949. The reversal of 157758897 is 798857751.

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

It is not a de Polignac number, because 157758897 - 2² = 157758893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157758893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117238 + ... + 118575.

It is an arithmetic number, because the mean of its divisors is an integer number (26411168).

Almost surely, 2^157758897 is an apocalyptic number.

It is an amenable number.

157758897 is a deficient number, since it is larger than the sum of its proper divisors (53530447).

157758897 is a wasteful number, since it uses less digits than its factorization.

157758897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236039.

The product of its digits is 4939200, while the sum is 57.

The square root of 157758897 is about 12560.2108660643. The cubic root of 157758897 is about 540.3368919729.

The spelling of 157758897 in words is "one hundred fifty-seven million, seven hundred fifty-eight thousand, eight hundred ninety-seven".