157434934 has 4 divisors (see below), whose sum is σ = 236152404. Its totient is φ = 78717466.

The previous prime is 157434917. The next prime is 157434967. The reversal of 157434934 is 439434751.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 39358732 + ... + 39358735.

It is an arithmetic number, because the mean of its divisors is an integer number (59038101).

Almost surely, 2^157434934 is an apocalyptic number.

157434934 is a deficient number, since it is larger than the sum of its proper divisors (78717470).

157434934 is an equidigital number, since it uses as much as digits as its factorization.

157434934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78717469.

The product of its digits is 181440, while the sum is 40.

The square root of 157434934 is about 12547.3078387358. The cubic root of 157434934 is about 539.9667720752.

The spelling of 157434934 in words is "one hundred fifty-seven million, four hundred thirty-four thousand, nine hundred thirty-four".