157934149 has 4 divisors (see below), whose sum is σ = 159708780. Its totient is φ = 156159520.

The previous prime is 157934129. The next prime is 157934171. The reversal of 157934149 is 941439751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37088100 + 120846049 = 6090^2 + 10993^2 .

It is a cyclic number.

It is not a de Polignac number, because 157934149 - 2¹¹ = 157932101 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 (157934129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887182 + ... + 887359.

It is an arithmetic number, because the mean of its divisors is an integer number (39927195).

Almost surely, 2^157934149 is an apocalyptic number.

It is an amenable number.

157934149 is a deficient number, since it is larger than the sum of its proper divisors (1774631).

157934149 is an equidigital number, since it uses as much as digits as its factorization.

157934149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774630.

The product of its digits is 136080, while the sum is 43.

The square root of 157934149 is about 12567.1854048550. The cubic root of 157934149 is about 540.5369019867.

The spelling of 157934149 in words is "one hundred fifty-seven million, nine hundred thirty-four thousand, one hundred forty-nine".