1151253400 has 48 divisors (see below), whose sum is σ = 2920002840. Its totient is φ = 418636800.

The previous prime is 1151253353. The next prime is 1151253401. The reversal of 1151253400 is 43521511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151253401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259449 + ... + 263848.

Almost surely, 2^1151253400 is an apocalyptic number.

1151253400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151253400 is an abundant number, since it is smaller than the sum of its proper divisors (1768749440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151253400 is a wasteful number, since it uses less digits than its factorization.

1151253400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523324 (or 523315 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1151253400 is about 33930.1252576527. The cubic root of 1151253400 is about 1048.0700451406.

Adding to 1151253400 its reverse (43521511), we get a palindrome (1194774911).

The spelling of 1151253400 in words is "one billion, one hundred fifty-one million, two hundred fifty-three thousand, four hundred".