190143069 has 4 divisors (see below), whose sum is σ = 253524096. Its totient is φ = 126762044.

The previous prime is 190143061. The next prime is 190143073. The reversal of 190143069 is 960341091.

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, and also an emirpimes, since its reverse is a distinct semiprime: 960341091 = 3 ⋅320113697.

It is a cyclic number.

It is not a de Polignac number, because 190143069 - 2³ = 190143061 is a prime.

It is a super-2 number, since 2×190143069² = 72308773377477522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190143061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31690509 + ... + 31690514.

It is an arithmetic number, because the mean of its divisors is an integer number (63381024).

Almost surely, 2^190143069 is an apocalyptic number.

It is an amenable number.

190143069 is a deficient number, since it is larger than the sum of its proper divisors (63381027).

190143069 is an equidigital number, since it uses as much as digits as its factorization.

190143069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63381026.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 190143069 is about 13789.2374335929. The cubic root of 190143069 is about 575.0339679996.

The spelling of 190143069 in words is "one hundred ninety million, one hundred forty-three thousand, sixty-nine".