1249499196100 has 27 divisors (see below), whose sum is σ = 2711437512231. Its totient is φ = 499795207200.

The previous prime is 1249499196089. The next prime is 1249499196137. The reversal of 1249499196100 is 16919949421.

The square root of 1249499196100 is 1117810.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 345539406276 + 903959789824 = 587826^2 + 950768^2 .

It is a super-2 number, since 2×1249499196100² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11122210 + ... + 11233990.

Almost surely, 2^{1249499196100} is an apocalyptic number.

1249499196100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1249499196100 is the 1117810-th square number.

It is an amenable number.

1249499196100 is an abundant number, since it is smaller than the sum of its proper divisors (1461938316131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249499196100 is an frugal number, since it uses more digits than its factorization.

1249499196100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223576 (or 111788 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 1249499196100 in words is "one trillion, two hundred forty-nine billion, four hundred ninety-nine million, one hundred ninety-six thousand, one hundred".