1230732151 has 4 divisors (see below), whose sum is σ = 1342616904. Its totient is φ = 1118847400.

The previous prime is 1230732149. The next prime is 1230732193. The reversal of 1230732151 is 1512370321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1230732151 - 2¹ = 1230732149 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 (1230732751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55942360 + ... + 55942381.

It is an arithmetic number, because the mean of its divisors is an integer number (335654226).

Almost surely, 2^1230732151 is an apocalyptic number.

1230732151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1230732151 is a deficient number, since it is larger than the sum of its proper divisors (111884753).

1230732151 is a wasteful number, since it uses less digits than its factorization.

1230732151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111884752.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1230732151 is about 35081.7923002802. The cubic root of 1230732151 is about 1071.6538174416.

The spelling of 1230732151 in words is "one billion, two hundred thirty million, seven hundred thirty-two thousand, one hundred fifty-one".