1258253161 has 8 divisors (see below), whose sum is σ = 1395142848. Its totient is φ = 1125114000.

The previous prime is 1258253153. The next prime is 1258253167. The reversal of 1258253161 is 1613528521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1258253161 - 2³ = 1258253153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1258253167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936925 + ... + 938266.

It is an arithmetic number, because the mean of its divisors is an integer number (174392856).

Almost surely, 2^1258253161 is an apocalyptic number.

1258253161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1258253161 is the 15864-th centered decagonal number.

It is an amenable number.

1258253161 is a deficient number, since it is larger than the sum of its proper divisors (136889687).

1258253161 is a wasteful number, since it uses less digits than its factorization.

1258253161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875263.

The product of its digits is 14400, while the sum is 34.

The square root of 1258253161 is about 35471.8643575440. The cubic root of 1258253161 is about 1079.5829325245.

The spelling of 1258253161 in words is "one billion, two hundred fifty-eight million, two hundred fifty-three thousand, one hundred sixty-one".