1230140149 has 12 divisors (see below), whose sum is σ = 1432151904. Its totient is φ = 1053541944.

The previous prime is 1230140141. The next prime is 1230140239. The reversal of 1230140149 is 9410410321.

It is a happy number.

It is not a de Polignac number, because 1230140149 - 2³ = 1230140141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230140141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54214 + ... + 73480.

It is an arithmetic number, because the mean of its divisors is an integer number (119345992).

Almost surely, 2^1230140149 is an apocalyptic number.

It is an amenable number.

1230140149 is a deficient number, since it is larger than the sum of its proper divisors (202011755).

1230140149 is a wasteful number, since it uses less digits than its factorization.

1230140149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20584 (or 20577 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1230140149 is about 35073.3538316483. The cubic root of 1230140149 is about 1071.4819622977.

The spelling of 1230140149 in words is "one billion, two hundred thirty million, one hundred forty thousand, one hundred forty-nine".