1616510149 has 2 divisors, whose sum is σ = 1616510150. Its totient is φ = 1616510148.

The previous prime is 1616510107. The next prime is 1616510167. The reversal of 1616510149 is 9410156161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1175804100 + 440706049 = 34290^2 + 20993^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616510149 - 2⁹ = 1616509637 is a prime.

It is a super-2 number, since 2×1616510149² = 5226210123640004402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616510849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808255074 + 808255075.

It is an arithmetic number, because the mean of its divisors is an integer number (808255075).

Almost surely, 2^1616510149 is an apocalyptic number.

It is an amenable number.

1616510149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616510149 is an equidigital number, since it uses as much as digits as its factorization.

1616510149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 1616510149 is about 40205.8471991326. The cubic root of 1616510149 is about 1173.6163338884.

The spelling of 1616510149 in words is "one billion, six hundred sixteen million, five hundred ten thousand, one hundred forty-nine".