13145650 has 72 divisors (see below), whose sum is σ = 29623104. Its totient is φ = 4250400.

The previous prime is 13145617. The next prime is 13145651. The reversal of 13145650 is 5654131.

It is a super-2 number, since 2×13145650² = 345616227845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (13145651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185115 + ... + 185185.

It is an arithmetic number, because the mean of its divisors is an integer number (411432).

Almost surely, 2^13145650 is an apocalyptic number.

13145650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13145650 is an abundant number, since it is smaller than the sum of its proper divisors (16477454).

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

13145650 is a wasteful number, since it uses less digits than its factorization.

13145650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13145650 is about 3625.6930371999. The cubic root of 13145650 is about 236.0083426142.

Adding to 13145650 its reverse (5654131), we get a palindrome (18799781).

The spelling of 13145650 in words is "thirteen million, one hundred forty-five thousand, six hundred fifty".