1248561450 has 36 divisors (see below), whose sum is σ = 3354469638. Its totient is φ = 332949600.

The previous prime is 1248561449. The next prime is 1248561499. The reversal of 1248561450 is 541658421.

It is a happy number.

1248561450 is a `hidden beast` number, since 1 + 2 + 48 + 561 + 4 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1090782729 + 157778721 = 33027^2 + 12561^2 .

It is a super-2 number, since 2×1248561450² = 3117811388852205000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1386841 + ... + 1387740.

Almost surely, 2^1248561450 is an apocalyptic number.

1248561450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248561450 is an abundant number, since it is smaller than the sum of its proper divisors (2105908188).

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

1248561450 is a wasteful number, since it uses less digits than its factorization.

1248561450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774599 (or 2774591 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1248561450 is about 35334.9890335345. The cubic root of 1248561450 is about 1076.8039514556.

The spelling of 1248561450 in words is "one billion, two hundred forty-eight million, five hundred sixty-one thousand, four hundred fifty".