1248349725 has 180 divisors, whose sum is σ = 2811989664. Its totient is φ = 544864320.

The previous prime is 1248349717. The next prime is 1248349733. The reversal of 1248349725 is 5279438421.

It is an interprime number because it is at equal distance from previous prime (1248349717) and next prime (1248349733).

It is not a de Polignac number, because 1248349725 - 2³ = 1248349717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 2281902 + ... + 2282448.

Almost surely, 2^1248349725 is an apocalyptic number.

1248349725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1248349725 is an abundant number, since it is smaller than the sum of its proper divisors (1563639939).

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

1248349725 is a wasteful number, since it uses less digits than its factorization.

1248349725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 585 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1248349725 is about 35331.9929384121. The cubic root of 1248349725 is about 1076.7430816162.

The spelling of 1248349725 in words is "one billion, two hundred forty-eight million, three hundred forty-nine thousand, seven hundred twenty-five".