1253832905 has 32 divisors (see below), whose sum is σ = 1649217024. Its totient is φ = 909559296.

The previous prime is 1253832863. The next prime is 1253832919. The reversal of 1253832905 is 5092383521.

It is a cyclic number.

It is not a de Polignac number, because 1253832905 - 2¹² = 1253828809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916532 + ... + 917898.

It is an arithmetic number, because the mean of its divisors is an integer number (51538032).

Almost surely, 2^1253832905 is an apocalyptic number.

It is an amenable number.

1253832905 is a deficient number, since it is larger than the sum of its proper divisors (395384119).

1253832905 is a wasteful number, since it uses less digits than its factorization.

1253832905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1253832905 is about 35409.5030323782. The cubic root of 1253832905 is about 1078.3172540211.

The spelling of 1253832905 in words is "one billion, two hundred fifty-three million, eight hundred thirty-two thousand, nine hundred five".