1346521137 has 32 divisors (see below), whose sum is σ = 1970457216. Its totient is φ = 812851200.

The previous prime is 1346521129. The next prime is 1346521147. The reversal of 1346521137 is 7311256431.

It is not a de Polignac number, because 1346521137 - 2³ = 1346521129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1346521098 and 1346521107.

It is not an unprimeable number, because it can be changed into a prime (1346521147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1524498 + ... + 1525380.

It is an arithmetic number, because the mean of its divisors is an integer number (61576788).

Almost surely, 2^1346521137 is an apocalyptic number.

It is an amenable number.

1346521137 is a deficient number, since it is larger than the sum of its proper divisors (623936079).

1346521137 is a wasteful number, since it uses less digits than its factorization.

1346521137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its digits is 15120, while the sum is 33.

The square root of 1346521137 is about 36694.9742744153. The cubic root of 1346521137 is about 1104.2592817747.

Adding to 1346521137 its reverse (7311256431), we get a palindrome (8657777568).

The spelling of 1346521137 in words is "one billion, three hundred forty-six million, five hundred twenty-one thousand, one hundred thirty-seven".