1245245554 has 16 divisors (see below), whose sum is σ = 2143570176. Its totient is φ = 531460800.

The previous prime is 1245245549. The next prime is 1245245567. The reversal of 1245245554 is 4555425421.

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, 181162 + ... + 187909.

It is an arithmetic number, because the mean of its divisors is an integer number (133973136).

Almost surely, 2^1245245554 is an apocalyptic number.

1245245554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1245245554 is a deficient number, since it is larger than the sum of its proper divisors (898324622).

1245245554 is a wasteful number, since it uses less digits than its factorization.

1245245554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369321.

The product of its digits is 160000, while the sum is 37.

The square root of 1245245554 is about 35288.0369813907. The cubic root of 1245245554 is about 1075.8498573228.

The spelling of 1245245554 in words is "one billion, two hundred forty-five million, two hundred forty-five thousand, five hundred fifty-four".