1249496213 has 8 divisors (see below), whose sum is σ = 1434765120. Its totient is φ = 1065919680.

The previous prime is 1249496207. The next prime is 1249496219. The reversal of 1249496213 is 3126949421.

It is an interprime number because it is at equal distance from previous prime (1249496207) and next prime (1249496219).

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

It is a de Polignac number, because none of the positive numbers 2^k-1249496213 is a prime.

It is a super-2 number, since 2×1249496213² = 3122481572602682738, which contains 22 as substring.

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 (1249496219) 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, 421508 + ... + 424461.

It is an arithmetic number, because the mean of its divisors is an integer number (179345640).

Almost surely, 2^1249496213 is an apocalyptic number.

It is an amenable number.

1249496213 is a deficient number, since it is larger than the sum of its proper divisors (185268907).

1249496213 is an equidigital number, since it uses as much as digits as its factorization.

1249496213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846187.

The product of its digits is 93312, while the sum is 41.

The square root of 1249496213 is about 35348.2137172446. The cubic root of 1249496213 is about 1077.0726087446.

The spelling of 1249496213 in words is "one billion, two hundred forty-nine million, four hundred ninety-six thousand, two hundred thirteen".