1001145400 has 48 divisors (see below), whose sum is σ = 2330710200. Its totient is φ = 399934080.

The previous prime is 1001145391. The next prime is 1001145401. The reversal of 1001145400 is 45411001.

It is a super-2 number, since 2×1001145400² = 2004584223882320000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001145401) 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, 173766 + ... + 179434.

Almost surely, 2^1001145400 is an apocalyptic number.

1001145400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001145400 is an abundant number, since it is smaller than the sum of its proper divisors (1329564800).

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

1001145400 is a wasteful number, since it uses less digits than its factorization.

1001145400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568 (or 6559 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1001145400 is about 31640.8817829086. The cubic root of 1001145400 is about 1000.3816543214.

Adding to 1001145400 its reverse (45411001), we get a palindrome (1046556401).

The spelling of 1001145400 in words is "one billion, one million, one hundred forty-five thousand, four hundred".