157550729 has 12 divisors (see below), whose sum is σ = 183487104. Its totient is φ = 134886024.

The previous prime is 157550719. The next prime is 157550761. The reversal of 157550729 is 927055751.

It is a de Polignac number, because none of the positive numbers 2^k-157550729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157550719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63812 + ... + 66234.

It is an arithmetic number, because the mean of its divisors is an integer number (15290592).

Almost surely, 2^157550729 is an apocalyptic number.

It is an amenable number.

157550729 is a deficient number, since it is larger than the sum of its proper divisors (25936375).

157550729 is a wasteful number, since it uses less digits than its factorization.

157550729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764 (or 3757 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 41.

The square root of 157550729 is about 12551.9213270320. The cubic root of 157550729 is about 540.0991233217.

The spelling of 157550729 in words is "one hundred fifty-seven million, five hundred fifty thousand, seven hundred twenty-nine".