1253421134 has 32 divisors (see below), whose sum is σ = 2190240000. Its totient is φ = 526844160.

The previous prime is 1253421079. The next prime is 1253421137. The reversal of 1253421134 is 4311243521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253421137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410654 + ... + 413694.

It is an arithmetic number, because the mean of its divisors is an integer number (68445000).

Almost surely, 2^1253421134 is an apocalyptic number.

1253421134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1253421134 is a deficient number, since it is larger than the sum of its proper divisors (936818866).

1253421134 is a wasteful number, since it uses less digits than its factorization.

1253421134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its digits is 2880, while the sum is 26.

The square root of 1253421134 is about 35403.6881412092. The cubic root of 1253421134 is about 1078.1991977825.

Adding to 1253421134 its reverse (4311243521), we get a palindrome (5564664655).

The spelling of 1253421134 in words is "one billion, two hundred fifty-three million, four hundred twenty-one thousand, one hundred thirty-four".