191414157 has 16 divisors (see below), whose sum is σ = 282987840. Its totient is φ = 114105600.

The previous prime is 191414147. The next prime is 191414159. The reversal of 191414157 is 751414191.

It is not a de Polignac number, because 191414157 - 2⁷ = 191414029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191414159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45532 + ... + 49557.

It is an arithmetic number, because the mean of its divisors is an integer number (17686740).

Almost surely, 2^191414157 is an apocalyptic number.

It is an amenable number.

191414157 is a deficient number, since it is larger than the sum of its proper divisors (91573683).

191414157 is a wasteful number, since it uses less digits than its factorization.

191414157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95164.

The product of its digits is 5040, while the sum is 33.

The square root of 191414157 is about 13835.2505217650. The cubic root of 191414157 is about 576.3124721193.

The spelling of 191414157 in words is "one hundred ninety-one million, four hundred fourteen thousand, one hundred fifty-seven".