1253912890 has 16 divisors (see below), whose sum is σ = 2258150400. Its totient is φ = 501319120.

The previous prime is 1253912887. The next prime is 1253912921. The reversal of 1253912890 is 982193521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8590 + ... + 50809.

It is an arithmetic number, because the mean of its divisors is an integer number (141134400).

Almost surely, 2^1253912890 is an apocalyptic number.

1253912890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253912890 is a deficient number, since it is larger than the sum of its proper divisors (1004237510).

1253912890 is a wasteful number, since it uses less digits than its factorization.

1253912890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61517.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1253912890 is about 35410.6324428130. The cubic root of 1253912890 is about 1078.3401830125.

The spelling of 1253912890 in words is "one billion, two hundred fifty-three million, nine hundred twelve thousand, eight hundred ninety".