1523253140 has 24 divisors (see below), whose sum is σ = 3200985312. Its totient is φ = 608891040.

The previous prime is 1523253133. The next prime is 1523253163. The reversal of 1523253140 is 413523251.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5747 + ... + 55493.

It is an arithmetic number, because the mean of its divisors is an integer number (133374388).

Almost surely, 2^1523253140 is an apocalyptic number.

1523253140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1523253140 is an abundant number, since it is smaller than the sum of its proper divisors (1677732172).

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

1523253140 is a wasteful number, since it uses less digits than its factorization.

1523253140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51287 (or 51285 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1523253140 is about 39028.8757204201. The cubic root of 1523253140 is about 1150.5990930150.

Adding to 1523253140 its reverse (413523251), we get a palindrome (1936776391).

The spelling of 1523253140 in words is "one billion, five hundred twenty-three million, two hundred fifty-three thousand, one hundred forty".