189510401 has 4 divisors (see below), whose sum is σ = 189640704. Its totient is φ = 189380100.

The previous prime is 189510397. The next prime is 189510413. The reversal of 189510401 is 104015981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 189510401 - 2² = 189510397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189510901) 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, 62945 + ... + 65886.

It is an arithmetic number, because the mean of its divisors is an integer number (47410176).

Almost surely, 2^189510401 is an apocalyptic number.

It is an amenable number.

189510401 is a deficient number, since it is larger than the sum of its proper divisors (130303).

189510401 is a wasteful number, since it uses less digits than its factorization.

189510401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130302.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 189510401 is about 13766.2776740846. The cubic root of 189510401 is about 574.3954841466.

The spelling of 189510401 in words is "one hundred eighty-nine million, five hundred ten thousand, four hundred one".