146549621123 has 32 divisors (see below), whose sum is σ = 158585236992. Its totient is φ = 135155404800.

The previous prime is 146549621087. The next prime is 146549621131. The reversal of 146549621123 is 321126945641.

It is a happy number.

It is a Cunningham number, because it is equal to 382818²-1.

It is a cyclic number.

It is not a de Polignac number, because 146549621123 - 2¹⁶ = 146549555587 is a prime.

It is a super-2 number, since 2×146549621123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146549627123) 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, 15690911 + ... + 15700247.

It is an arithmetic number, because the mean of its divisors is an integer number (4955788656).

Almost surely, 2^146549621123 is an apocalyptic number.

146549621123 is a deficient number, since it is larger than the sum of its proper divisors (12035615869).

146549621123 is a wasteful number, since it uses less digits than its factorization.

146549621123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9695.

The product of its digits is 311040, while the sum is 44.

The spelling of 146549621123 in words is "one hundred forty-six billion, five hundred forty-nine million, six hundred twenty-one thousand, one hundred twenty-three".