1534312140 has 48 divisors (see below), whose sum is σ = 4434662400. Its totient is φ = 395951040.

The previous prime is 1534312139. The next prime is 1534312229. The reversal of 1534312140 is 412134351.

It is a happy number.

It is a super-2 number, since 2×1534312140² = 4708227485902759200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1534312140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410590 + ... + 414309.

It is an arithmetic number, because the mean of its divisors is an integer number (92388800).

Almost surely, 2^1534312140 is an apocalyptic number.

1534312140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1534312140 is an abundant number, since it is smaller than the sum of its proper divisors (2900350260).

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

1534312140 is a wasteful number, since it uses less digits than its factorization.

1534312140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824942 (or 824940 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1534312140 is about 39170.2966544804. The cubic root of 1534312140 is about 1153.3768771543.

Adding to 1534312140 its reverse (412134351), we get a palindrome (1946446491).

The spelling of 1534312140 in words is "one billion, five hundred thirty-four million, three hundred twelve thousand, one hundred forty".