151078581 has 16 divisors (see below), whose sum is σ = 224032320. Its totient is φ = 100623600.

The previous prime is 151078549. The next prime is 151078589. The reversal of 151078581 is 185870151.

It is a happy number.

151078581 is a `hidden beast` number, since 1 + 5 + 1 + 0 + 78 + 581 = 666.

It is not a de Polignac number, because 151078581 - 2⁵ = 151078549 is a prime.

It is a super-2 number, since 2×151078581² = 45649475273947122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151078589) 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 15 ways as a sum of consecutive naturals, for example, 37306 + ... + 41156.

It is an arithmetic number, because the mean of its divisors is an integer number (14002020).

Almost surely, 2^151078581 is an apocalyptic number.

It is an amenable number.

151078581 is a deficient number, since it is larger than the sum of its proper divisors (72953739).

151078581 is a wasteful number, since it uses less digits than its factorization.

151078581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 36.

The square root of 151078581 is about 12291.4027271097. The cubic root of 151078581 is about 532.5997591317.

The spelling of 151078581 in words is "one hundred fifty-one million, seventy-eight thousand, five hundred eighty-one".