1249353045 has 32 divisors (see below), whose sum is σ = 2226762240. Its totient is φ = 664614720.

The previous prime is 1249353029. The next prime is 1249353059. The reversal of 1249353045 is 5403539421.

It is not a de Polignac number, because 1249353045 - 2⁴ = 1249353029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41940 + ... + 65250.

It is an arithmetic number, because the mean of its divisors is an integer number (69586320).

Almost surely, 2^1249353045 is an apocalyptic number.

1249353045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1249353045 is a deficient number, since it is larger than the sum of its proper divisors (977409195).

1249353045 is a wasteful number, since it uses less digits than its factorization.

1249353045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23722 (or 23716 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1249353045 is about 35346.1885498281. The cubic root of 1249353045 is about 1077.0314699722.

The spelling of 1249353045 in words is "one billion, two hundred forty-nine million, three hundred fifty-three thousand, forty-five".