1029927149 has 4 divisors (see below), whose sum is σ = 1045299264. Its totient is φ = 1014555036.

The previous prime is 1029927139. The next prime is 1029927181. The reversal of 1029927149 is 9417299201.

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: 9417299201 = 79 ⋅119206319.

It is a cyclic number.

It is not a de Polignac number, because 1029927149 - 2⁸ = 1029926893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029927139) 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, 7685957 + ... + 7686090.

It is an arithmetic number, because the mean of its divisors is an integer number (261324816).

Almost surely, 2^1029927149 is an apocalyptic number.

It is an amenable number.

1029927149 is a deficient number, since it is larger than the sum of its proper divisors (15372115).

1029927149 is an equidigital number, since it uses as much as digits as its factorization.

1029927149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15372114.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1029927149 is about 32092.4780750879. The cubic root of 1029927149 is about 1009.8778236685.

The spelling of 1029927149 in words is "one billion, twenty-nine million, nine hundred twenty-seven thousand, one hundred forty-nine".