16031149 has 2 divisors, whose sum is σ = 16031150. Its totient is φ = 16031148.

The previous prime is 16031143. The next prime is 16031237. The reversal of 16031149 is 94113061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 2941225 = 3618^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 16031149 - 2¹³ = 16022957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16031143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8015574 + 8015575.

It is an arithmetic number, because the mean of its divisors is an integer number (8015575).

Almost surely, 2^16031149 is an apocalyptic number.

It is an amenable number.

16031149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16031149 is an equidigital number, since it uses as much as digits as its factorization.

16031149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 16031149 is about 4003.8917318029. The cubic root of 16031149 is about 252.1476259813.

The spelling of 16031149 in words is "sixteen million, thirty-one thousand, one hundred forty-nine".