151278379 has 4 divisors (see below), whose sum is σ = 172889584. Its totient is φ = 129667176.

The previous prime is 151278371. The next prime is 151278401. The reversal of 151278379 is 973872151.

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

It is a cyclic number.

It is not a de Polignac number, because 151278379 - 2³ = 151278371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151278371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10805592 + ... + 10805605.

It is an arithmetic number, because the mean of its divisors is an integer number (43222396).

Almost surely, 2^151278379 is an apocalyptic number.

151278379 is a deficient number, since it is larger than the sum of its proper divisors (21611205).

151278379 is an equidigital number, since it uses as much as digits as its factorization.

151278379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611204.

The product of its digits is 105840, while the sum is 43.

The square root of 151278379 is about 12299.5275925541. The cubic root of 151278379 is about 532.8344394133.

The spelling of 151278379 in words is "one hundred fifty-one million, two hundred seventy-eight thousand, three hundred seventy-nine".