190862149 has 2 divisors, whose sum is σ = 190862150. Its totient is φ = 190862148.

The previous prime is 190862143. The next prime is 190862171. The reversal of 190862149 is 941268091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97121025 + 93741124 = 9855^2 + 9682^2 .

It is a cyclic number.

It is not a de Polignac number, because 190862149 - 2¹⁷ = 190731077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190862143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95431074 + 95431075.

It is an arithmetic number, because the mean of its divisors is an integer number (95431075).

Almost surely, 2^190862149 is an apocalyptic number.

It is an amenable number.

190862149 is a deficient number, since it is larger than the sum of its proper divisors (1).

190862149 is an equidigital number, since it uses as much as digits as its factorization.

190862149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 190862149 is about 13815.2867867446. The cubic root of 190862149 is about 575.7579408659.

The spelling of 190862149 in words is "one hundred ninety million, eight hundred sixty-two thousand, one hundred forty-nine".