1249489601 has 8 divisors (see below), whose sum is σ = 1275805440. Its totient is φ = 1223446752.

The previous prime is 1249489573. The next prime is 1249489603. The reversal of 1249489601 is 1069849421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1249489601 - 2⁶ = 1249489537 is a prime.

It is a super-2 number, since 2×1249489601² = 3122448526014278402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249489603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58985 + ... + 77318.

It is an arithmetic number, because the mean of its divisors is an integer number (159475680).

Almost surely, 2^1249489601 is an apocalyptic number.

It is an amenable number.

1249489601 is a deficient number, since it is larger than the sum of its proper divisors (26315839).

1249489601 is a wasteful number, since it uses less digits than its factorization.

1249489601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136495.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1249489601 is about 35348.1201904712. The cubic root of 1249489601 is about 1077.0707088812.

The spelling of 1249489601 in words is "one billion, two hundred forty-nine million, four hundred eighty-nine thousand, six hundred one".