1234312151 has 4 divisors (see below), whose sum is σ = 1274128704. Its totient is φ = 1194495600.

The previous prime is 1234312127. The next prime is 1234312159. The reversal of 1234312151 is 1512134321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234312151 is a prime.

It is a super-2 number, since 2×1234312151² = 3047052972212493602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234312159) 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, 19908230 + ... + 19908291.

It is an arithmetic number, because the mean of its divisors is an integer number (318532176).

Almost surely, 2^1234312151 is an apocalyptic number.

1234312151 is a deficient number, since it is larger than the sum of its proper divisors (39816553).

1234312151 is an equidigital number, since it uses as much as digits as its factorization.

1234312151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39816552.

The product of its digits is 720, while the sum is 23.

The square root of 1234312151 is about 35132.7788681738. The cubic root of 1234312151 is about 1072.6919005384.

Adding to 1234312151 its reverse (1512134321), we get a palindrome (2746446472).

The spelling of 1234312151 in words is "one billion, two hundred thirty-four million, three hundred twelve thousand, one hundred fifty-one".