1253529430 has 16 divisors (see below), whose sum is σ = 2277055440. Its totient is φ = 496811232.

The previous prime is 1253529413. The next prime is 1253529439. The reversal of 1253529430 is 349253521.

It is a super-2 number, since 2×1253529430² = 3142672063752249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253529439) 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, 573924 + ... + 576103.

It is an arithmetic number, because the mean of its divisors is an integer number (142315965).

Almost surely, 2^1253529430 is an apocalyptic number.

1253529430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253529430 is a deficient number, since it is larger than the sum of its proper divisors (1023526010).

1253529430 is a wasteful number, since it uses less digits than its factorization.

1253529430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150143.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1253529430 is about 35405.2175533494. The cubic root of 1253529430 is about 1078.2302491439.

The spelling of 1253529430 in words is "one billion, two hundred fifty-three million, five hundred twenty-nine thousand, four hundred thirty".