1253433454 has 48 divisors (see below), whose sum is σ = 2361771648. Its totient is φ = 488401056.

The previous prime is 1253433449. The next prime is 1253433479. The reversal of 1253433454 is 4543343521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154569 + ... + 162475.

It is an arithmetic number, because the mean of its divisors is an integer number (49203576).

Almost surely, 2^1253433454 is an apocalyptic number.

1253433454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1253433454 is a deficient number, since it is larger than the sum of its proper divisors (1108338194).

1253433454 is a wasteful number, since it uses less digits than its factorization.

1253433454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009 (or 7996 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

The square root of 1253433454 is about 35403.8621339537. The cubic root of 1253433454 is about 1078.2027303464.

Adding to 1253433454 its reverse (4543343521), we get a palindrome (5796776975).

The spelling of 1253433454 in words is "one billion, two hundred fifty-three million, four hundred thirty-three thousand, four hundred fifty-four".