1307421524 has 12 divisors (see below), whose sum is σ = 2291219700. Its totient is φ = 652787328.

The previous prime is 1307421523. The next prime is 1307421541. The reversal of 1307421524 is 4251247031.

It can be written as a sum of positive squares in 2 ways, for example, as 222904900 + 1084516624 = 14930^2 + 32932^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307421523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227669 + ... + 233340.

It is an arithmetic number, because the mean of its divisors is an integer number (190934975).

Almost surely, 2^1307421524 is an apocalyptic number.

It is an amenable number.

1307421524 is a deficient number, since it is larger than the sum of its proper divisors (983798176).

1307421524 is a wasteful number, since it uses less digits than its factorization.

1307421524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461722 (or 461720 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1307421524 is about 36158.2843066426. The cubic root of 1307421524 is about 1093.4658147596.

Adding to 1307421524 its reverse (4251247031), we get a palindrome (5558668555).

The spelling of 1307421524 in words is "one billion, three hundred seven million, four hundred twenty-one thousand, five hundred twenty-four".