151012581 has 16 divisors (see below), whose sum is σ = 213902208. Its totient is φ = 94438400.

The previous prime is 151012579. The next prime is 151012597. The reversal of 151012581 is 185210151.

It is not a de Polignac number, because 151012581 - 2¹ = 151012579 is a prime.

It is a super-2 number, since 2×151012581² = 45609599240563122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151012531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11101 + ... + 20621.

It is an arithmetic number, because the mean of its divisors is an integer number (13368888).

Almost surely, 2^151012581 is an apocalyptic number.

It is an amenable number.

151012581 is a deficient number, since it is larger than the sum of its proper divisors (62889627).

151012581 is a wasteful number, since it uses less digits than its factorization.

151012581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9852.

The product of its (nonzero) digits is 400, while the sum is 24.

The square root of 151012581 is about 12288.7176304121. The cubic root of 151012581 is about 532.5221908802.

The spelling of 151012581 in words is "one hundred fifty-one million, twelve thousand, five hundred eighty-one".