157550647 has 4 divisors (see below), whose sum is σ = 157706280. Its totient is φ = 157395016.

The previous prime is 157550629. The next prime is 157550681. The reversal of 157550647 is 746055751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746055751 = 7 ⋅106579393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157550647 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 (157530647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76288 + ... + 78325.

It is an arithmetic number, because the mean of its divisors is an integer number (39426570).

Almost surely, 2^157550647 is an apocalyptic number.

157550647 is a deficient number, since it is larger than the sum of its proper divisors (155633).

157550647 is a wasteful number, since it uses less digits than its factorization.

157550647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155632.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 157550647 is about 12551.9180605993. The cubic root of 157550647 is about 540.0990296204.

The spelling of 157550647 in words is "one hundred fifty-seven million, five hundred fifty thousand, six hundred forty-seven".