151231079 has 4 divisors (see below), whose sum is σ = 151558176. Its totient is φ = 150903984.

The previous prime is 151231061. The next prime is 151231081. The reversal of 151231079 is 970132151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970132151 = 25633 ⋅37847.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151231079 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 (151231039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162854 + ... + 163779.

It is an arithmetic number, because the mean of its divisors is an integer number (37889544).

Almost surely, 2^151231079 is an apocalyptic number.

151231079 is a deficient number, since it is larger than the sum of its proper divisors (327097).

151231079 is an equidigital number, since it uses as much as digits as its factorization.

151231079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327096.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 151231079 is about 12297.6046041495. The cubic root of 151231079 is about 532.7789000905.

The spelling of 151231079 in words is "one hundred fifty-one million, two hundred thirty-one thousand, seventy-nine".