1249508474 has 4 divisors (see below), whose sum is σ = 1874262714. Its totient is φ = 624754236.

The previous prime is 1249508473. The next prime is 1249508479. The reversal of 1249508474 is 4748059421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1235030449 + 14478025 = 35143^2 + 3805^2 .

It is a super-2 number, since 2×1249508474² = 3122542853195617352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1249508473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312377117 + ... + 312377120.

Almost surely, 2^1249508474 is an apocalyptic number.

1249508474 is a deficient number, since it is larger than the sum of its proper divisors (624754240).

1249508474 is an equidigital number, since it uses as much as digits as its factorization.

1249508474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624754239.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 1249508474 is about 35348.3871484966. The cubic root of 1249508474 is about 1077.0761317496.

The spelling of 1249508474 in words is "one billion, two hundred forty-nine million, five hundred eight thousand, four hundred seventy-four".