191252092 has 6 divisors (see below), whose sum is σ = 334691168. Its totient is φ = 95626044.

The previous prime is 191252069. The next prime is 191252093. The reversal of 191252092 is 290252191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191252093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23906508 + ... + 23906515.

Almost surely, 2^191252092 is an apocalyptic number.

It is an amenable number.

191252092 is a deficient number, since it is larger than the sum of its proper divisors (143439076).

191252092 is a wasteful number, since it uses less digits than its factorization.

191252092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47813027 (or 47813025 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 191252092 is about 13829.3923221521. The cubic root of 191252092 is about 576.1497769903.

Subtracting 191252092 from its reverse (290252191), we obtain a palindrome (99000099).

The spelling of 191252092 in words is "one hundred ninety-one million, two hundred fifty-two thousand, ninety-two".