1254628245 has 16 divisors (see below), whose sum is σ = 2161821312. Its totient is φ = 617663040.

The previous prime is 1254628217. The next prime is 1254628267. The reversal of 1254628245 is 5428264521.

It is not a de Polignac number, because 1254628245 - 2⁵ = 1254628213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3216801 + ... + 3217190.

It is an arithmetic number, because the mean of its divisors is an integer number (135113832).

Almost surely, 2^1254628245 is an apocalyptic number.

1254628245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1254628245 is a deficient number, since it is larger than the sum of its proper divisors (907193067).

1254628245 is a wasteful number, since it uses less digits than its factorization.

1254628245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434012.

The product of its digits is 153600, while the sum is 39.

The square root of 1254628245 is about 35420.7318529699. The cubic root of 1254628245 is about 1078.5452077264.

The spelling of 1254628245 in words is "one billion, two hundred fifty-four million, six hundred twenty-eight thousand, two hundred forty-five".