157537663 has 4 divisors (see below), whose sum is σ = 157686928. Its totient is φ = 157388400.

The previous prime is 157537661. The next prime is 157537693. The reversal of 157537663 is 366735751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157537663 - 2¹ = 157537661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157537661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73038 + ... + 75163.

It is an arithmetic number, because the mean of its divisors is an integer number (39421732).

Almost surely, 2^157537663 is an apocalyptic number.

157537663 is a deficient number, since it is larger than the sum of its proper divisors (149265).

157537663 is a wasteful number, since it uses less digits than its factorization.

157537663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149264.

The product of its digits is 396900, while the sum is 43.

The square root of 157537663 is about 12551.4008381535. The cubic root of 157537663 is about 540.0841924054.

The spelling of 157537663 in words is "one hundred fifty-seven million, five hundred thirty-seven thousand, six hundred sixty-three".