146721134 has 16 divisors (see below), whose sum is σ = 252915936. Its totient is φ = 62532000.

The previous prime is 146721103. The next prime is 146721137. The reversal of 146721134 is 431127641.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 146721097 and 146721106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146721137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26417 + ... + 31484.

It is an arithmetic number, because the mean of its divisors is an integer number (15807246).

Almost surely, 2^146721134 is an apocalyptic number.

146721134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

146721134 is a deficient number, since it is larger than the sum of its proper divisors (106194802).

146721134 is a wasteful number, since it uses less digits than its factorization.

146721134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58091.

The product of its digits is 4032, while the sum is 29.

The square root of 146721134 is about 12112.8499536649. The cubic root of 146721134 is about 527.4292668872.

Adding to 146721134 its reverse (431127641), we get a palindrome (577848775).

The spelling of 146721134 in words is "one hundred forty-six million, seven hundred twenty-one thousand, one hundred thirty-four".